{"title":"Water Quality Products","description":"","products":[{"product_id":"836-1","title":"836-1 Digital Conductivity TDS Meter, ppm ppt uS mS °C\/°F Pentype Water Quality Tester with ATC","description":"\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMinimum Order Quantity (MOQ) : 50 pieces\u003cbr\u003eFor inquiries and orders, e-mail us at sales@gainexpress.com or message us via our chatbot\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplications \u0026amp; Usage:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs \u0026amp; scientific testing, pools \u0026amp; spas, ecology testing, boilers \u0026amp; cooling towers, water treatment and more.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUnits of measure: µS, mS, ppm, ppt, °C, °F\u003c\/li\u003e\n\u003cli\u003eDual display temperature \u0026amp; conductivity or TDS with ATC value\u003c\/li\u003e\n\u003cli\u003eEasy and simple to use\u003c\/li\u003e\n\u003cli\u003e2 parameters measures (Conductivity \u0026amp; TDS)\u003c\/li\u003e\n\u003cli\u003eAdjustable TDS factor\u003c\/li\u003e\n\u003cli\u003eAdjustable Temperature coefficient factor\u003c\/li\u003e\n\u003cli\u003eAdjustable Normalization Temperature (Reference Temperature)\u003c\/li\u003e\n\u003cli\u003eAuto \u0026amp; Manual Ranging Capability\u003c\/li\u003e\n\u003cli\u003eAllow resetting to factory default setting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e°C\/°F\u003c\/strong\u003e unit switchable\u003c\/li\u003e\n\u003cli\u003eData \u003cstrong\u003eHOLD \u003c\/strong\u003efunction\u003c\/li\u003e\n\u003cli\u003eLow battery indicator and auto power off disable\u003c\/li\u003e\n\u003cli\u003eCalibration data for ranges can be retained \u0026amp; can be viewed anytime\u003c\/li\u003e\n\u003cli\u003eWith over \u0026amp; below the limit value indicator\u003c\/li\u003e\n\u003cli\u003eQuick response and easy to calibrate with one touch only for calibration\u003c\/li\u003e\n\u003cli\u003eEasy battery replacement\u003c\/li\u003e\n\u003cli\u003ePen size, easy to fit in pocket\u003c\/li\u003e\n\u003cli\u003eLow cost design with high accuracy\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConductivity Range:\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e0~1999 µS\u003c\/li\u003e\n\u003cli\u003e0~19.99mS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eTDS Range:\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e0~1999 ppm\u003c\/li\u003e\n\u003cli\u003e0~19.99ppt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eResolution:1 µS \/ 1ppm or 0.01mS \/ 0.01ppt\u003c\/li\u003e\n\u003cli\u003eAccuracy:±1% Full Scale + 1 digit\u003c\/li\u003e\n\u003cli\u003eCalibration standard range: (0.2~1)* full scale\u003c\/li\u003e\n\u003cli\u003eOperating temperature: 0~50°C (32°F~122°F)\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC): 0~50°C\u003c\/li\u003e\n\u003cli\u003eTDS Factor: 0.4~1.00\u003c\/li\u003e\n\u003cli\u003eTemperature coefficient: 0~4.0% per °C\u003c\/li\u003e\n\u003cli\u003eNormalization temperature: 20°C or 25°C\u003c\/li\u003e\n\u003cli\u003ePower requirements: 4 x 1.5V batteries (Type A76 or LR44)\u003c\/li\u003e\n\u003cli\u003eCalibration: 2 point (Calibration range is ±40% of factory default parameter)\u003c\/li\u003e\n\u003cli\u003eBattery Life: \u0026gt;80 hrs continuous use\u003c\/li\u003e\n\u003cli\u003eDimension (H x W x T): 165 x 35 x 32mm\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eSet Includes:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x  Conductivity TDS Meter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4 x 1.5V LR44 battery (Installed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x English User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStandard Packaging Box\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/ILXBtYkp3HM\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"A01","offers":[{"title":"Default Title","offer_id":32500941094967,"sku":"836-1","price":60.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-836-1-836-1-digital-conductivity-tds-meter-ppm-ppt-us-ms-0c0f-pentype-water-quality-tester-with-atc-784156.jpg?v=1732853668"},{"product_id":"837-1","title":"837-1 Salinity \u0026 Temp Meter, Pen Type Salt Water Quality Tester ATC NaCl 0~70 ppt, Handheld Measurement Monitor Tester, for Saltwater, Hydroponics, Pool, Aquarium, Fish Pond, Spa, Monitoring \u0026 Testing","description":"\u003cp\u003e\u003cspan\u003eThis Dual meter is designed to measure the salt content in liquid without the need for conversions. It measures both temperature (ºC\/°F) and salinity (ppt) and displays simultaneously on its clear LCD. It has an IP65 Rating, waterproof and dustproof housing and waterproof membrane keypad. \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eApplications \u0026amp; Usage:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt quickly and accurately measures salt concentration in koi ponds. Ideal for checking salt in fish hospital tanks and tropical aquariums, water monitoring, seawater-prepared food solutions, breeding ponds, aquariums, holding tanks and more!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBuilt-in NaCL Temperature coefficient \u003c\/li\u003e\n\u003cli\u003eConductivity to TDS conversion factor \u003c\/li\u003e\n\u003cli\u003eMultipoint calibration guarantees full range accuracy\u003c\/li\u003e\n\u003cli\u003eIP65 water resistant housing\u003c\/li\u003e\n\u003cli\u003eData Hold function\u003c\/li\u003e\n\u003cli\u003e°C\/°F switchable temperature unit\u003c\/li\u003e\n\u003cli\u003eAllow factory default resetting \u003c\/li\u003e\n\u003cli\u003eWith over \u0026amp; below the limit value indicator \u003c\/li\u003e\n\u003cli\u003eLow battery indicator \u003c\/li\u003e\n\u003cli\u003eSelf-diagnostic for error messages\u003c\/li\u003e\n\u003cli\u003eAuto power off if idle or no operation for 20 minutes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasuring Range: \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSalinity: 0.00~10.0 ppt (NaCL) and 10.1~70.0ppt (NaCL) \u003c\/li\u003e\n\u003cli\u003eTemperature Compensation: 0~50°C \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy: \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSalinity: ±1%FS ±1 digit or ±2%FS ±1 digit (10.1~70.0ppt) \u003c\/li\u003e\n\u003cli\u003eTemperature: ±0.5°C \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution: \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSalinity: 0.01ppt or 0.1ppt (10.1~70.0ppt) \u003c\/li\u003e\n\u003cli\u003eTemperature: 0.1°C\/°F\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eTDS Factor: Built-in NaCL conductivity to TDS conversion factor\u003c\/li\u003e\n\u003cli\u003eBuilt-in NaCL Temperature coefficient\u003c\/li\u003e\n\u003cli\u003eNormalization Temperature: Fixed at 25°C\u003c\/li\u003e\n\u003cli\u003eOperating Environment: 0~50°C; \u0026lt;90% Humidity\u003c\/li\u003e\n\u003cli\u003ePower Supply: 4 x LR44 batteries\u003c\/li\u003e\n\u003cli\u003eWeight: 0.14kg\u003c\/li\u003e\n\u003cli\u003eDimension: 165 x 35 x 32mm\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSet Includes: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Salinity and Temperature Meter\u003c\/li\u003e\n\u003cli\u003e4 x 1.5V Button Batteries (FREE)\u003c\/li\u003e\n\u003cli\u003eEnglish Quick Start Guide\u003c\/li\u003e\n\u003cli\u003eStandard packaging box\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"A01","offers":[{"title":"Default Title","offer_id":32500942733367,"sku":"837-1","price":47.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-837-1-837-1-salinity-temp-meter-pen-type-salt-water-quality-tester-atc-nacl-070-ppt-handheld-measurement-monitor-tester-for-saltwater-hydroponics-p-476965.jpg?v=1735489260"},{"product_id":"8403","title":"8403 Professional Digital Large LCD Dissolved Oxygen DO Meter Tester Handheld Water Quality Tester with Temperature Measurement","description":"\u003ch2 class=\"ui-box-title\"\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ui-box-body\"\u003e\n\u003cp\u003e\u003cspan\u003eThis Dissolved Oxygen (DO) Meter is a high performance, high accuracy, large LCD with dissolve oxygen and temperature value display. It has ready indicator prompts whenever reading stabilizes. LCD shows measured DO are displayed in % or in ppm\/mg\/l and Barometric are displayed in mmHg or KPA, Temperature in °C, and real time in Year\/Month\/Date and Hour\/minute\/Seconds interchangeably.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 90px;\"\u003e\u003cspan\u003e\u003ca href=\"http:\/\/bit.ly\/RS232A_Gainexpress\" target=\"_blank\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain_express_download-software_large.jpg?v=1562742794\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAquaculture: To monitor oxygen levels in fish and shrimp farming\u003c\/li\u003e\n\u003cli\u003eIndustrial: Ideal for checks the quality of plant water intake and discharge\u003c\/li\u003e\n\u003cli\u003eEnvironmental: To test water quality, BOD (Biochemical Oxygen Demand) value\u003c\/li\u003e\n\u003cli\u003eEducational: Ideal for quick, accurate DO readings in laboratories and schools\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBig LCD with D.O and temperature value display.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStability indication\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAuto temperature compensation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy 100% D.O value calibration.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAuto power off time selectable (20\/30\/40\/60\/90\/120 MINS)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOffered with most cost-effective \u003cstrong\u003eclark type oxygen electrode\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eData hold function\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdjustable Coefficient of membrane\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e99 Memory\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBarometric Pressure Compensation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReal Time Clock in every memory data\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccurate Dissolved Oxygen readings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBattery Low Indicator\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOptional: RS232 port to connect PC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWith\u003cstrong\u003e IrDA Port\u003c\/strong\u003e for printing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eOperating Features:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eManually Salt \/ Baro Compensation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMemory\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIRDA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReal Time\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eDissolve Oxygen D.O. Measurement \u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRange: 0~199.9% \/ 0~19.99 PPM \/ 0~19.99 mg\/I\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccuracy: ±1.5% F.S\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution: 0.1% \/ 0.01 PPM \/ 0.01 mg\/I\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eTemperature Measurement\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRange: 0~50 °C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccuracy: ± 0.3 °C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution: 0.1 °C\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSalinity Measurement\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eRange: 0.0~50ppt\u003c\/li\u003e\n\u003cli\u003eResolution: 0.1ppt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eBarometric Pressure: 500~1499 mmHg \/ 66.6~199.9 KPa\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePressure Resolution: 1 mmHg \/ 0.1 KPa\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLCD size : (h) 44 mm x (W) 26 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eOperating Temperature : 0~50 °C\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHumidity \u0026lt; 80%\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eStorage Temperature : 0~60 °C\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHumidity \u0026lt; 90%\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSensor Life Time: \u0026gt; 6 months ( with good maintenance )\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimension: (h) 175 mm x (W) 70 mm x (h) 33 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight of D.O. Meter : 150g ( without battery )\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight of whole set: 1075g\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBattery: AAA x 4pcs\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSet includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x Dissolved Oxygen Meter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Probe with 333cm Cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4 x AAA batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e5 x Teflon Membrane\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e5 x O-rings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 x Replacement Electrolyte Solution\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnglish Instruction Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSturdy \u0026amp; Protective Carrying Case\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003eOPTIONAL\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e (not included in the set)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem style=\"line-height: 1.2;\"\u003ePlease click here to buy this optional item \u003ca href=\"https:\/\/www.gainexpress.com\/products\/cdc-az?_pos=1\u0026amp;_sid=e77d3b39d\u0026amp;_ss=r\" target=\"_blank\"\u003e\u003cstrong\u003eRS232 Software CD \u0026amp; Cable\u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem style=\"line-height: 1.2;\"\u003eor you may contact us at sales (at)gainexpress.com if you want an optional item to be included in your order\u003c\/em\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ffffff;\"\u003eaz8403\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"A01","offers":[{"title":"Default Title","offer_id":606199389,"sku":"8403","price":212.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-8403-8403-professional-digital-large-lcd-dissolved-oxygen-do-meter-tester-handheld-water-quality-tester-with-temperature-measurement-529771.jpg?v=1732853635"},{"product_id":"868-9","title":"868-9 Waterproof Digital pH Meter Tester Thermometer °C °F Replaceable Electrode Pentype Design","description":"\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/unKkAaZ8Zcs\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cstrong\u003e\u003cspan\u003e\u003cbr\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eWaterproof\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e housing meets \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIP65 rating\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSelectable \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e°C \u0026amp; °F\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e units\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOne-Touch Auto Calibration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eAdjustable Multi-Points Calibration\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBig \u0026amp; clear screen display\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eSimultaneous display of pH \u0026amp; temperature\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSlope value display\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAuto buffer recognition to avoid errors during calibration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eReplaceable electrode\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eData hold\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePen size with ATC, easy to fit in pocket\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAuto \u0026amp; manual power off\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLow battery indicator, Calibration indicator and Measurement indicator\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eCE Marking\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBattery operated (Battery last \u0026gt;200 hrs of continuous use)\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003e\u003cstrong\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring Range: 0.00 ~ 14.00pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAccuracy:\u003c\/span\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003epH: ±0.05pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTemperature : ±0.5°C\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eResolution:\u003c\/span\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003epH: 0.01pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTemperature: 0.1°C\/°F\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCalibration Point (adjustable):  4.01,  7.00,  10.01\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eATC : 0~50°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAuto buffer recognize\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eOperating \u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTemperature: 0~50°C (32~122°F)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHumidity: 0~80% RH\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBattery Life: \u0026gt;200 hrs (continuous use)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSize: 176 x 39 x 39mm\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eSet includes\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003e:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003e1 x 2-in1 Waterproof Meter\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003e4 x LR44 Button Batteries (Installed)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003e1 x English Instruction Manual\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003e1 x Wrist Strap \u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003e3 x pH Powder  4.01,  7.00,  10.01\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStandard Colored Packaging Box\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eOptional Item\u003c\/strong\u003e\u003cem\u003e (not included in set)\u003c\/em\u003e\u003cbr\u003e \u003cstrong\u003ePlease click here to buy this optional item\u003c\/strong\u003e \u003ca href=\"http:\/\/www.gainexpress.com\/products\/optional-replaceable-electrode-with-cap-for-ph-temperature-pen-meter-868-9\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cspan\u003e\u003cstrong\u003eReplaceable electrode\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cbr\u003e \u003cem\u003eor you may contact us at sales(at)gainexpress.com if you want an optional items to be included in your order\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"A01","offers":[{"title":"Default Title","offer_id":39674288996407,"sku":"868-9","price":64.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-868-9-868-9-waterproof-digital-ph-meter-tester-thermometer-0c-0f-replaceable-electrode-pentype-design-300123.jpg?v=1732853873"},{"product_id":"869-0","title":"869-0 Professional pH Temperature Meter Tester °C \/°F ±0.05pH High Accuracy Portable Water Quality Device","description":"\u003ch2 class=\"ui-box-title\"\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ui-box-body\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePools\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAquariums\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eLaboratories\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAquaculture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCar Washes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWater Testing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWaste water treatment and many more applications that require pH measurement\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003e\u003cstrong\u003eCE\u003c\/strong\u003e \u003cstrong\u003eMarking\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProfessional pH Meter with very high accuracy\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e100% totally protected against dust and splashproof\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplaceable pH electrode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic \u0026amp; Manual Calibration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy 3 points Calibration (pH 4, 7,10)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo tools or trimmers needed for calibration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMeasure and display Temperature \u0026amp; pH values simultaneously\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic Temperature Compensation (ATC)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSelectable °C and °F\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePatented design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMeasures alkaline solution\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eData Hold function\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAuto power off with disable feature\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy read to 45°angle shape for increased readability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePortable design with pocket clip\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLow battery, Over Range, Calibration and Measuring indicators\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh quality and accurate testing results are guaranteed\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cbr\u003e \u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eWaterproof Grading : \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eIP66 100% splashproof \u0026amp; dustproof\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eMeasuring Range : \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e0~14PH\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution : 0.01pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAccuracy : \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e±0.05pH\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTemperature compensation : 0~50°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTemperature compensation accuracy : ±0.3°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating temperature : 0~50°C(32~122°F)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStorage temperature : 0~50°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating humidity : 0~80%RH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAuto power off : 20 minutes idle (with disable feature)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInput impedance : 10Ω (ohm)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower Supply : 2 x CR2032 Button Batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSize : 149 x 37 x 42mm\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eSet Includes\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x pH Meter with Replaceable Electrode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 x pH powder : pH 4.01  7.00  10.01 (FREE)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 x CR2032 Button Cell Battery (FREE)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Carrying Pouch (FREE)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x English Operation Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStandard Packaging Box\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOptional Item\u003c\/strong\u003e\u003cem\u003e (not included in set)\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e          Please click here to buy this optional item \u003c\/strong\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003ca href=\"http:\/\/www.gainexpress.com\/products\/optional-replaceable-electrode-for-waterproof-digital-ph-meter-temperature-869-0\" target=\"_blank\"\u003e\u003cspan\u003e\u003cspan\u003e\u003cstrong\u003eExtra R\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003eeplaceable Electrode\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cem\u003eor you may contact us at sales(at)gainexpress.com if you want an optional items to be included in your order\u003cbr\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cem\u003e\u003ciframe src=\"\/\/www.youtube.com\/embed\/ILXBtYkp3HM\" height=\"315\" width=\"560\" allowfullscreen=\"\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/em\u003e\u003c\/div\u003e","brand":"A01","offers":[{"title":"Default Title","offer_id":39677953146935,"sku":"869-0","price":62.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-869-0-869-0-professional-ph-temperature-meter-tester-0c-0f-005ph-high-accuracy-portable-water-quality-device-581654.jpg?v=1732853874"},{"product_id":"e-1325m","title":"E-1325M 0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa","description":"\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/oNPX0ityUa8\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\n\u003cp\u003e\u003cbr\u003eThis long version of the pH electrode that has a \u003cstrong\u003e50 Ohm BNC type\u003c\/strong\u003e socket allows you to connect directly to the input terminal of the pH meter, pH controller, or any pH device that has a BNC input terminal. Once your new pH electrode probe is connected to the electrode input terminal, you will need to calibrate it using the supplied calibration (buffer) powder. This pH electrode has a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003elonger body\u003c\/strong\u003e, an economical, durable, and quickly provides highly accurate results. \u003c\/p\u003e\n\u003cp\u003eMany users (i.e. those in clean water treatment, pool and spa water testing, chemical, laboratory, and even some wastewater applications), have their needs met with testers, meters, or controllers that have replaceable pH electrodes.\u003c\/p\u003e\n\u003cp\u003eWorks well with handheld meters, testers, or controllers. Re-use the meter portion indefinitely with this replaceable ph electrode. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplaceable pH electrode is easy to calibrate\u003c\/li\u003e\n\u003cli\u003eReplacement kit set that comes with a set of free calibration powder\u003c\/li\u003e\n\u003cli\u003eLonger electrode body and 300cm extra long cable \u003c\/li\u003e\n\u003cli\u003eProvides instant measurement \u0026amp; simple operation\u003c\/li\u003e\n\u003cli\u003eEasy monitoring of pH accurately\u003c\/li\u003e\n\u003cli\u003eComes with a protective cap to ensure the safety of the bulb\u003c\/li\u003e\n\u003cli\u003eWith Automatic Temperature Compensation\u003c\/li\u003e\n\u003cli\u003eIt is very reliable, stable, and portable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range: 0.00~14.00pH\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01pH\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.01pH\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0~50°C\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC): 0~50°C\u003c\/li\u003e\n\u003cli\u003eProbe Diameter: 1.3cm\u003c\/li\u003e\n\u003cli\u003eElectrode Length: 14.7cm\u003c\/li\u003e\n\u003cli\u003eCable Length: about 300cm long\u003c\/li\u003e\n\u003cli\u003eConnection: 50 ohm BNC socket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSet Includes  \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x\u003cstrong\u003e \u003c\/strong\u003epH Electrode with 50 ohm BNC Connector\u003c\/li\u003e\n\u003cli\u003e1 x pH 4.01 calibration powder\u003c\/li\u003e\n\u003cli\u003e1 x pH 6.86 calibration powder\u003c\/li\u003e\n\u003cli\u003e1 x pH 9.18 calibration powder\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":32501299478583,"sku":"E-1325M","price":28.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-e-1325m-e-1325m-0-14-ph-electrode-probe-bnc-connector-300cm-cable-for-ph-meter-monitor-controller-test-sensor-replacement-kit-for-aquarium-hydropon-473928.jpg?v=1732853748"},{"product_id":"e-2627","title":"E-2627 PH Probe with BNC Connector, 150cm Long Cable 0-14pH Test Sensor Electrode for PH Meter Monitor Controller, Replacement Kit for Aquarium Hydroponics Plant Pool Spa","description":"\u003cp\u003eThis short version of pH electrode that has \u003cstrong\u003e50 Ohm BNC type\u003c\/strong\u003e socket allows you to connect directly into the input terminal of pH meter or pH controller or any pH device that has a BNC input terminal. Once your new pH electrode probe is connected to the electrode input terminal, you will need to calibrate it using the supplied calibration (buffer) powder. This pH electrode has a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eshorter body\u003c\/strong\u003e, an economical, durable and quickly provide highly accurate results. \u003c\/p\u003e\n\u003cp\u003eMany users (i.e. those in clean water treatment, pool and spa water testing, chemical, laboratory and even some waste water applications), have their needs met with testers, meters or controllers that have replaceable pH electrodes.\u003c\/p\u003e\n\u003cp\u003eWorks well with handheld meters, testers or controllers. Re-use the meter portion indefinitely with this replaceable ph electrode. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplaceable pH electrode is easy to calibrate\u003c\/li\u003e\n\u003cli\u003eReplacement kit set that comes with a set of free calibration powder\u003c\/li\u003e\n\u003cli\u003eProvides instant measurement \u0026amp; simple operation\u003c\/li\u003e\n\u003cli\u003eEasy monitoring of pH accurately\u003c\/li\u003e\n\u003cli\u003eComes with protective cap to ensure the safety of the bulb\u003c\/li\u003e\n\u003cli\u003eWith Automatic Temperature Compensation\u003c\/li\u003e\n\u003cli\u003eIt is very reliable, stable and portable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBNC Type: 50 ohm\u003c\/li\u003e\n\u003cli\u003eMeasuring Range: 0.00~14.00pH\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01pH\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.01pH\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0~50°C\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC): 0~50°C\u003c\/li\u003e\n\u003cli\u003eElectrode Length: 9.5cm\u003c\/li\u003e\n\u003cli\u003eElectrode Diameter: 1.2cm\u003c\/li\u003e\n\u003cli\u003eCable Length: about 150cm long\u003c\/li\u003e\n\u003cli\u003eConnection: BNC socket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSet Includes  \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x\u003cstrong\u003e \u003c\/strong\u003epH Electrode with 50 ohm BNC Connector\u003c\/li\u003e\n\u003cli\u003e1 x pH 4.01 calibration powder\u003c\/li\u003e\n\u003cli\u003e1 x pH 6.86 calibration powder\u003c\/li\u003e\n\u003cli\u003e1 x pH 9.18 calibration powder\u003c\/li\u003e\n\u003cli\u003eCarrying case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":32501300887607,"sku":"E-2627","price":28.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-e-2627-e-2627-ph-probe-with-bnc-connector-150cm-long-cable-0-14ph-test-sensor-electrode-for-ph-meter-monitor-controller-replacement-kit-for-aquariu-101437.jpg?v=1732853907"},{"product_id":"ec-1383","title":"EC-1383 Pen Type EC \/ Hydroponics \/ Nutrient Meter (0~19.99ms\/cm)","description":"\u003ch2 class=\"ui-box-title\"\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ui-box-body\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003eAn accurate and reliable device, EC-1383 has the same functionality as that of EC-1382 but the measurements are in \"ms\/cm\". Electrical conductivity (EC) is a measurement of dissolved solids in water. These dissolved solids conduct electricity. EC is measured in milli-siemens per centimeter (ms\/cm). \u003c\/span\u003e\u003cspan\u003e\u003cspan\u003eEC is measurements of the strength of the nutrient solution. \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eApplications \u0026amp; Usage\u003c\/span\u003e:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIt can be used in many applications such as in Aquarium, swimming pool, Spa, Nutrient, Hydroponics and laboratory and many more.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e \u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWith \u003cspan\u003eAutomatic Temperature Compensation\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003eEquipped with \u003c\/span\u003e\u003cspan\u003e\u003cspan\u003eElectrode\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e for extreme durability, excellent conductivity \u0026amp; accuracy\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy to use and provides a quick measurement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh accuracy of ±2% full scale\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWith CE Approval and ideal for the most demanding of users\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWide range of applications in water quality testing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompact and light weight for mobility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWith accurate and clear display for ease of use\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy push power button and calibration with the mini-screw driver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eComes supplied with mini-screw driver and instruction manual to best utilize EC-1383\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003e\u003cspan\u003eMeasuring range: 0~19.99ms\/cm\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003e\u003cspan\u003eResolution: 0.01ms\/cm\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003e\u003cspan\u003eAccuracy: ±2%F.S\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003e\u003cspan\u003eDisplay: 4-digital LCD\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003e\u003cspan\u003eAutomatic Temperature Compensation: 0-50°C\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003e\u003cspan\u003eEnvironment: Humidity: 95°C\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003e\u003cspan\u003ePower Supply: 2×3V(CR2032 Battery)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003e\u003cspan\u003eDimensions: 150mm×27mm×20mm\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003e\u003cspan\u003eWeight: 46g\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003e\u003cspan\u003e\u003cspan\u003eCalibration Solutions:\u003c\/span\u003e \u003cspan\u003emS\/cm:12.88 ~ 13.0 mS\/cm\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003e\u003cspan\u003e\u003cspan\u003eProbes: Electrodes\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSet Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x Digital EC Conductivity Meter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 x CR-2032 (3V) Button Battery included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Plastic Case\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Trimmer (screwdriver)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":606218717,"sku":"EC-1383","price":27.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ec-1383-ec-1383-pen-type-ec-hydroponics-nutrient-meter-01999mscm-223664.jpg?v=1732853748"},{"product_id":"ec-1385","title":"EC-1385 3-in-1 Digital EC \/ CF \/ TDS Meter Combo Water Quality Tester IP65 Waterproof Conductivity with ATC Aquarium, Hydroponic, Laboratories, Environmental Monitoring Test Tool Kit","description":"\u003cp\u003eDesigned to test the water quality in 3 different parameters. It measures EC, CF and TDS without the need to purchase many different meters Electrical conductivity (EC) and Conductivity Factor (CF) measures the ability of a material to conduct electric current while TDS is an expression of mobile charged ions (such as minerals, salts, metals, cations and anions) dissolved in a particular amount of water. The lower the EC, CF and TDS level in water, the higher its purity.\u003c\/p\u003e\n\u003cp\u003eA very useful meter to measure the EC\/CF\/TDS level in various industries and applications such as aquarium, swimming pool, spa, nutrient, water hardness, food processing, hydroponics, laboratories and other environmental monitoring.\u003cbr\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e3 parameters: EC, CF, TDS with one electrode\u003c\/li\u003e\n\u003cli\u003eIP65 Waterproof design \u003c\/li\u003e\n\u003cli\u003eReplaceable electrode\u003c\/li\u003e\n\u003cli\u003eLarge and clear LCD display\u003c\/li\u003e\n\u003cli\u003eData Hold function\u003c\/li\u003e\n\u003cli\u003eQuick \u0026amp; highly accurate measurement\u003c\/li\u003e\n\u003cli\u003eBuilt-in Automatic Temperature Compensation (ATC)\u003c\/li\u003e\n\u003cli\u003eFactory pre-calibrated \u003c\/li\u003e\n\u003cli\u003eComes with calibration buffer solution and mini screwdriver\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring range:\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eEC: 0.00 ~ 19.99 EC\u003c\/li\u003e\n\u003cli\u003eCF: 0.0 ~ 199 CF\u003c\/li\u003e\n\u003cli\u003eTDS: 10 ~ 19990 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eResolution:\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eEC: 0.01 EC\u003c\/li\u003e\n\u003cli\u003eCF: 0.1 CF\u003c\/li\u003e\n\u003cli\u003eTDS: 10 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±2% Full Scale (F.S.)\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation:0 ~ 50°C (32 ~ 122°F)\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0 ~ 50°C (32 ~ 122°F)\u003c\/li\u003e\n\u003cli\u003ePower supply: 4 x 1.5 V (AG13) Button Cell Batteries (Included and installed)\u003c\/li\u003e\n\u003cli\u003eSize: approx. 185 x 38 x 38mm\u003c\/li\u003e\n\u003cli\u003eWeight: approx. 98g (batteries included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSet Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 3-in-1 Water Quality Meter\u003c\/li\u003e\n\u003cli\u003e1 x Bottle EC 12.88 mS\/cm Buffer Solution\u003c\/li\u003e\n\u003cli\u003e1 x Bottle EC 1413 us\/cm Buffer Solution\u003c\/li\u003e\n\u003cli\u003e4 x 1.5 V (AG13) Button Cell Batteries\u003c\/li\u003e\n\u003cli\u003e1 x English Instruction Manual\u003c\/li\u003e\n\u003cli\u003e1 x Mini screwdriver\u003c\/li\u003e\n\u003cli\u003eProtective Carrying Case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":12766797627447,"sku":"EC-1385","price":37.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ec-1385-ec-1385-3-in-1-digital-ec-cf-tds-meter-combo-water-quality-tester-ip65-waterproof-conductivity-with-atc-aquarium-hydroponic-laboratories-en-328210.jpg?v=1732854230"},{"product_id":"ecs-23852","title":"ECS-23852 0.4 - 4.4EC EC\/ppm\/CF Nutra-wand \/ Hydroponic Meter Stick","description":"\u003cdiv class=\"ui-box-body\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eThis \u003cspan\u003e3 in 1 nutrient meter\u003c\/span\u003e dipstick is the fastest \u0026amp; easiest way to measure the nutrient strength in your nutrient reservoir. It provides \u003cspan style=\"font-size: 14px;\"\u003ehighly accurate\u003c\/span\u003e results for \u003cspan\u003eEC (Electricity Conductivity), CF(Conductivity Factor) \u003c\/span\u003eand\u003cspan\u003e Total Dissolved Solids (TDS)(PPM or parts per million)\u003c\/span\u003e. Reading is instantly displayed on an intuitive waterproof flashing analog LED lights \u003cspan style=\"font-size: 14px;\"\u003escale. Knowing\u003c\/span\u003e the strength of nutrients is essential when growing hydroponics to determine what the strength of the solution is before feeding your plants and while they are growing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis perfect all-around conductivity \u003cspan style=\"font-size: 14px;\"\u003emeter is\u003c\/span\u003e \u003cspan\u003e100% waterproof\u003c\/span\u003e, simple to use \u0026amp; easy to \u003cspan\u003e\u003cspan style=\"font-size: 14px;\"\u003eread, is\u003c\/span\u003e fully temperature compensated\u003c\/span\u003e, and \u003cspan\u003e\u003cspan style=\"font-size: 14px;\"\u003eautomatically turns\u003c\/span\u003e on and off \u003c\/span\u003ewhen placed in or removed from the test solution and has a wider measuring range of \u003cspan\u003e52CF\u003c\/span\u003e,\u003cspan\u003e5.2EC \u003c\/span\u003eand \u003cspan\u003e3640ppm\u003c\/span\u003e.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eWATERPROOF\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMeasure EC (Electricity Conductivity),CF (Conductivity Factor) and PPM (parts per million)in one stick\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh conductivity measurement \u003cspan style=\"font-size: 14px;\"\u003efor road\u003c\/span\u003e range of crops\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e100% Fully Waterproof\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eEasy to use, no external knobs \u003c\/span\u003e\u003cspan style=\"font-size: 14px;\"\u003eor switches\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic Power On \/ Off\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt-in with Automatic \u003cspan style=\"font-size: 14px;\"\u003eTemperature Compensation\u003c\/span\u003e (ATC)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFactory calibrated, never needs recalibration\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eMeasuring range:\u003c\/span\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCF: 4~52CF\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEC: 0.4~5.2EC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTDS: 280~3640ppm (EC x 700)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTDS: 200~2600ppm (EC x 500)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eResolution:\u003c\/span\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCF: 1CF\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEC: 0.1EC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTDS: 70ppm (700 conversion factor)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTDS: 50ppm (500 conversion factor)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccuracy: ±4% of reading\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic Temperature Compensation:0~50°C (32~122°F)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating Temperature: 0~50°C(32~122°F)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFactory Pre-Calibrated\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic Power On \/ Off\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower Supply: 3 x 1.5V AA Batteries(Included)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSize: approx. 415 x 23 x 23mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: approx. 179g\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eSet Includes\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x Waterproof 3-in-1 CF \/ EC \/ PPM Stick\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 x 1.5V AA Batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eQuick Start Guide\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStandard Factory Package\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":606218837,"sku":"ECS-23852","price":43.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/products\/ECS-23852_preview_269.jpg?v=1565064908"},{"product_id":"gx-e1","title":"GX-E1  Single Cylinder pH Electrode + Long Cable + BNC Type Plug + 2 Buffer Solutions","description":"\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eThe single cylinder pH electrode that has \u003cstrong\u003e50 Ohm BNC type\u003c\/strong\u003e socket allows you to connect directly into the input terminal of pH meter or pH controller or any pH device that has a BNC input terminal. The cable is long. This gives you the flexibility to measure a solution in a container from the device.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eOnce your new pH electrode probe is connected to the electrode input terminal, you will need to calibrate it using the supplied calibration (buffer) solutions. This pH electrode is economical, response fast and it comes with protective cap to ensure the safety of the bulb.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis can be used for general water applications such as drinking, domestic and rain water, swimming pools, aquariums, green houses plus its compatible with handheld meters or controllers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003eFeatures: \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEasy monitoring of pH accurately plus the values can be achieved within few seconds\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplaceable pH electrode is easy to calibrate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eComes with calibration fluids\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIt is very reliable, stable and transportable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe operation is simple and comfortable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eComes with storage solution, keeps the electrode moist to maximize electrode performance and extends electrode life \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e \u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eSpecification:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring Range: 0.00~14.00PH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution: 0.01PH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccuracy: ±0.01PH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating Temperature: 0°C~50°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic Temperature Compensation (ATC): 0°C~50°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConnection: long cable with 50 ohm BNC socket \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions: 150mm long x 12mm diameter (without the cap)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e \u003cstrong\u003e\u003cspan\u003eSet Includes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x PH Electrode 50 ohm BNC Type \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 x  bottles of calibration solution (pH4.003 and pH6.864) \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":606228081,"sku":"GX-E1","price":22.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-gx-e1-gx-e1-single-cylinder-ph-electrode-long-cable-bnc-type-plug-2-buffer-solutions-381270.jpg?v=1732854119"},{"product_id":"gx-e2","title":"GX-E2 pH Electrode + 3m Cable + BNC Type Plug","description":"\u003cp\u003e\u003cspan\u003eThe detachable pH electrode with \u003cstrong\u003e50 ohm BNC type\u003c\/strong\u003e connection is DURABLE, HEAVY DUTY and possesses a high sensitivity, extremely fast in measuring liquids suitably. With its BNC plug and 3m cable suitable for continuous operation for all controllers, meter, testers and other monitoring devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJust connect the GX-E2 electrode to the equipment and it's fully functional and ready to use. Once your new pH electrode probe is connected to the electrode input terminal, you will need to calibrate it using the supplied calibration (buffer) solution. The GX-E2 comes with a protective to ensure the safety of the bulb.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cbr\u003eFeatures: \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEasy monitoring of pH accurately plus the values can be achieved within few seconds\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDurable and heavy duty\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReplaceable pH electrode is easy to calibrate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIt is very reliable, stable and transportable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe operation is simple and comfortable \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVery long cable for flexibility \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e \u003cbr\u003e \u003cstrong\u003e\u003cspan\u003eSpecifications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCable Length: \u003cstrong\u003e300cm  long\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring Range: 0.00 ~14.00pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring Errors: ±0.1pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring Accuracy: 0.01pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConnection: 50 ohm BNC socket\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions: 162mm long × 14mm diameter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating Temperature: 0°C - 50°C ATC \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 51g \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e \u003cbr\u003e \u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eSets Includes:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x 50 ohm BNC type pH Electrode \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 x Bottles of calibration solution (pH4.003 and pH6.864) \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":606228201,"sku":"GX-E2","price":28.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-gx-e2-gx-e2-ph-electrode-3m-cable-bnc-type-plug-471050.jpg?v=1735489636"},{"product_id":"orp-1","title":"ORP-1 ORP Redox Electrode, BNC Type Connector Replacement Probe for Tester Meter Monitor Controller Oxidation Reduction Potential Check, 14cm Long 1.2cm Diameter 300cm Extra Long Cable","description":"\u003cdiv class=\"ui-box-body\"\u003e\n\u003cp\u003eSingle cylinder ORP electrode allows you to connect the \u003cstrong\u003e50 ohm BNC socket\u003c\/strong\u003e directly into the input terminal of ORP meter or ORP controller or any ORP device that has a BNC input terminal. This replaceable ORP electrode gives you the flexibility to measure a solution in a container as far as 300 cm from the device. It precisely determines the redox tension of the intended solution to be measured.\u003cbr\u003e\u003cbr\u003eOnce your new ORP electrode probe is connected to the electrode input terminal, calibrate it first with the calibration (buffer) solutions before using the newly replace ORP electrode.\u003cbr\u003e\u003cbr\u003eThis can be used for general water applications such as drinking, domestic and rainwater, aquariums, tanks, ponds, pools, spas, etc.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplaceable ORP electrode\u003c\/li\u003e\n\u003cli\u003eProvides instant ORP measurement\u003c\/li\u003e\n\u003cli\u003eSimple and comfortable to install and use \u003c\/li\u003e\n\u003cli\u003eHigh and accurate measurement\u003c\/li\u003e\n\u003cli\u003eComes with protective cap to ensure the safety of the bulb\u003c\/li\u003e\n\u003cli\u003eReliable, stable, and transportable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSpecification:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range: -1999~1999mV \u003c\/li\u003e\n\u003cli\u003eResolution: 1mV\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.1% F·S±1 digit \u003c\/li\u003e\n\u003cli\u003eCable Length: about 300cm long\u003c\/li\u003e\n\u003cli\u003eConnection: 50 ohm BNC socket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSet Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x ORP Electrode 50 ohm BNC Type\u003c\/li\u003e\n\u003cli\u003eProtective Carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":32502436790327,"sku":"ORP-1","price":39.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-orp-1-orp-1-orp-redox-electrode-bnc-type-connector-replacement-probe-for-tester-meter-monitor-controller-oxidation-reduction-potential-check-14cm-l-727588.jpg?v=1732854228"},{"product_id":"gx-orp2","title":"GX-ORP2 Replaceable ORP REDOX Electrode 0~±1999 mV for ORP Meter 300cm","description":"\u003ch2 class=\"ui-box-title\"\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ui-box-body\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eThe detachable\u003c\/span\u003e\u003cspan\u003e ORP\/Redox electrode\u003c\/span\u003e\u003cspan\u003e with \u003cstrong\u003e50 ohm \u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eBNC\u003c\/strong\u003e connector\u003c\/span\u003e\u003cspan\u003e is DURABLE, HEAVY DUTY and possesses a high sensitivity, extremely fast in measurement. It gives you the flexibility to measure a solution in a container as far as \u003c\/span\u003e\u003cspan\u003e300cm\u003c\/span\u003e\u003cspan\u003e from the meter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProvides precise redox tension of the solution to be measured to help you determine the status of your tanks, ponds, pools, spas and other general water applications such as drinking, domestic and rain water, aquariums.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003eCompatible to any handheld meters or controllers with BNC provisions\u003c\/span\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eDurable and heavy duty\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eReplaceable ORP electrode is easy to calibrate\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cspan\u003eR\u003c\/span\u003e\u003cspan\u003eeliable, stable and transportable\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cspan\u003eS\u003c\/span\u003e\u003cspan\u003eimple and comfortable operation\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cspan\u003eWith long cable for flexibility\u003c\/span\u003e\u003cbr\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eCable Length: \u003cspan\u003e300cm long\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eMeasuring Range: 0 ~ ±1999mV\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eResolution: 1mV\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eAccuracy: ±0.1% F·S±1 digit\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eConnection: 50 ohm BNC socket\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eDimensions: 120mm long × 12mm\u003cspan\u003e \u003c\/span\u003ediameter\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan\u003eOperating Temperature: 0°C - 50°C ATC\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cspan\u003eWeight: 41g\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp align=\"left\"\u003e\u003cstrong\u003eSet includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x 50 ohm BNC Type ORP Electrode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStandard factory packaging\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":606228265,"sku":"GX-ORP2","price":42.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-gx-orp2-gx-orp2-replaceable-orp-redox-electrode-01999-mv-for-orp-meter-300cm-300439.jpg?v=1735489642"},{"product_id":"orp-1692","title":"ORP-1692 0-1000mV ORP REDOX METER TESTER DURABLE ACCURATE","description":"\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMeasurements of ORP are fundamental to water and liquid quality, and this pocket ORP meter offer high reliability and accuracy at a very affordable price. It measure the amount of Oxidation Reduction Potential (ORP) level in a solution. ORP is a tendency of the solution to either gain or lose electrons. \u003c\/span\u003e\u003cspan\u003eOxidation is defined as the loss of electrons in a molecule, atom or ion. An oxidizing agent (e.g.Chlorine and Ozone) is a substance that acquires electrons in a Redox reaction. ORP is a potential which is measured in millivolts (mV). The more positive the ORP value, the greater the power of water disinfection, thus the faster the micro organism is killed (oxidized).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eORP or Oxidation Reduction Potential is commonly used in measurement of Water Disinfection and is correlated with the quality and purity of water. This meter allows calibration and offers highly reliable measurements and has a wide range of applications in Aquarium, Hydroponics, Spas,Swimming pools and other water systems.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eLarge LCD display with highly accurate readings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePocket-size and portable design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy to use and provides instant display of results\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring range : -1999 ~ 1999mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccuracy: ±5mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution : 1mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLCD Display : 4 Digits\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating Temperature : 0 - 50°C(0 - 122°F)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCalibration : Manual using the included mini-screw driver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower Supply : 2 x 3V (CR2032) Button Cell Battery (included)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSize : approx. 150 x 27 x 20mm(5.91' x 1.06' x 0.79' inch)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight : approx. 48g\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSet Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x ORP meter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1x Mini Screwdriver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x English Instruction Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStandard Factory Package\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"color: #ffffff;\"\u003eorp1692 \u003c\/span\u003e\u003cbr\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":32505964986423,"sku":"ORP-1692","price":39.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-orp-1692-orp-1692-0-1000mv-orp-redox-meter-tester-durable-accurate-144701.jpg?v=1732854235"},{"product_id":"orp-1696","title":"ORP-1696  ±1999mV ORP REDOX Meter + Electrode Water Quality Tester Laboratory Aquarium Pool","description":"\u003cdiv class=\"ui-box-body\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eAn Ozone has been found to be an effective agent against parasites and bacterial diseases in the aquarium and pond. Ozone is measured in millivolt (mv) units and is expressed as the REDOX Potential or ORP (Oxidation\/Reduction Potential) of the water.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe higher the ORP level, the less pollution in the water, the lower the ORP level, the more pollution in the water. ORP\/REDOX METER , can be use to aquarium \u0026amp; Koi, swimming pool \u0026amp; spa, laboratory and hospital, and any water application.\u003c\/span\u003e\u003cbr\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eUser-friendly and easy to install with its step-by-step operating information\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHas a 4-digital LCD for ease of reading\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFour (4) 1.5V batteries are provided for a clean and wireless environment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn adapter is provided if you want to save your batteries for later use\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA mini-screw driver is also provided to fine-tune the reading to standard calibration\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMeasure Range: 0~±1999mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution: 1mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccuracy: ±5mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower Supply: 4x1.5V Battery (Button Type)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnvironment: Temperature is 0~50°C and Humidity is \u0026lt;95%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating Temperature: 0~50°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions: 60mm x 55mm x 23mm\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSet includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x ORP REDOX Meter\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4 x 1.5V Batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Power adapter \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Mini-Screw Driver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Protective Cap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x English User Manual   \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":606238745,"sku":"ORP-1696","price":54.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-orp-1696-orp-1696-1999mv-orp-redox-meter-electrode-water-quality-tester-laboratory-aquarium-pool-482269.jpg?v=1732854351"},{"product_id":"orp-8651","title":"ORP-8651 3-in-1 Heavy Duty pH, mV \u0026 Temperature Meter w\/ auto buffer recognition","description":"\u003ch2 class=\"ui-box-title\"\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ui-box-body\"\u003e\n\u003cp\u003eMeasures pH, ORP and temperature accurately with advance features such as multi-display LCD screen wherein it simultaneous display (pH\/mV \u0026amp; temperature, memory counter, time real-time clock and mode indicators). It also provides both °C and °F that can be easily switch, automatic and manual temperature compensation, save, recall \u0026amp; delete recorded data, hold function, min \u0026amp; max values, back-light, auto power off that can be disable, option to transmit data into the computer for analyzation and printing (CD \u0026amp; cable not included in the set), with 5 maximum calibration points and from panel calibration adjustments, with automatic buffer recognition. The whole set comes complete with pH4, pH7 \u0026amp; pH10 buffer solutions, pH electrode with ATC, ORP electrode and multi-purpose plastic hardened carrying case \u0026amp; 1.5V batteries!Plus, now you have the option to get the RS232 Software CD and cable for data logging and direct saving of your gathered readings to your PC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication \u0026amp; Usage: \u003c\/strong\u003eThis handy meter is ideal for checking water treatment, industrial applications, pools, spas, aquariums, labs, aquaculture, sanitation plants, car washes, hydroponics, water \u0026amp; waste water treatment and boilers\/steam generator maintenance and many other applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHealth and Safety Standards \u0026amp; Certifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur products has the approval of the European Directives, each meter's components comply to their essential health and safety requirements set out in thru the CE marking. Your safety is assured.\u003c\/p\u003e\n\u003cp style=\"padding-left: 90px;\"\u003e\u003ca href=\"http:\/\/bit.ly\/RS232A_Gainexpress\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain_express_download-software_large.jpg?v=1562742794\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCan store each parameter up to 99 record, 99 PH \u0026amp; 99 mV\/ORP\u003c\/li\u003e\n\u003cli\u003eMeasures pH, mV and Temperature\u003c\/li\u003e\n\u003cli\u003eIntegrated pH, ORP and Temperature measurements in one meter\u003c\/li\u003e\n\u003cli\u003eMulti-display LCD screen\u003c\/li\u003e\n\u003cli\u003eAccurate and high resolution\u003c\/li\u003e\n\u003cli\u003e°C\/°F switchable with real-time display\u003c\/li\u003e\n\u003cli\u003eFront panel calibration adjustments\u003c\/li\u003e\n\u003cli\u003eWith hold function that freezes displayed reading\u003c\/li\u003e\n\u003cli\u003eMin\/Max values review of memorized data\u003c\/li\u003e\n\u003cli\u003eWith pH automatic buffer recognition to avoid errors during calibration\u003c\/li\u003e\n\u003cli\u003eAllows automatic or manual temperature compensation\u003c\/li\u003e\n\u003cli\u003e3-points pH calibration (maximum 5 points pH calibration)\u003c\/li\u003e\n\u003cli\u003eWith memory recall and real-time clock setting features\u003c\/li\u003e\n\u003cli\u003eWith RS232 receptor for online logging or upload data to PC for analysis (optional RS232 CD \u0026amp; cable is not included in the set)\u003c\/li\u003e\n\u003cli\u003eWith Back-light feature for dark environment operation\u003c\/li\u003e\n\u003cli\u003eEasy to view probe calibration data\u003c\/li\u003e\n\u003cli\u003eWith \"Ready\" icon on LCD to indicate if reading is stable or not\u003c\/li\u003e\n\u003cli\u003eError indicators during calibration, hold, max \u0026amp; min, record, Low bat\u003c\/li\u003e\n\u003cli\u003eMeter can be powered by 4pcs of AAA batteries (included in the set) for better mobility or by a 9V DC power adapter for long time use (power adapter is not included in the set)\u003c\/li\u003e\n\u003cli\u003eAuto power off with disable feature\u003c\/li\u003e\n\u003cli\u003eWith provision for tripod mounting\u003c\/li\u003e\n\u003cli\u003eWith safety approval for a long and trouble-free life\u003c\/li\u003e\n\u003cli\u003eComes with pH electrode with ATC, ORP electrode, multi-purpose plastic hardened carrying case and 3 pH buffer solutions(pH4, pH7 \u0026amp; pH10)\u003c\/li\u003e\n\u003cli\u003eNow comes with Optional RS232 Software CD and Cable (not included in the set)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epH MEASUREMENT\n\u003cul\u003e\n\u003cli\u003emeasuring range : 0.00~14.00\u003c\/li\u003e\n\u003cli\u003ehigh resolution : 0.01pH\u003c\/li\u003e\n\u003cli\u003eaccuracy : ±0.02pH\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eORP MEASUREMENT\n\u003cul\u003e\n\u003cli\u003emeasuring range : -1999 ~ +1999mV\u003c\/li\u003e\n\u003cli\u003eresolution : 0.1mV(-199.9~+199.9) or 1mV (-1999~+1999)\u003c\/li\u003e\n\u003cli\u003eaccuracy : ±0.2mV(-199.9~+199.9) or ±2 mV (-1999~+1999)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eMV MEASUREMENT\n\u003cul\u003e\n\u003cli\u003emeasuring range: -499 ~ +499mV\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eManual \u0026amp; Automatic Temperature Compensation\u003c\/li\u003e\n\u003cli\u003eCalibration: Max 5 points automatic buffer recognition\u003c\/li\u003e\n\u003cli\u003eWith pH Slope\/Offset display\u003c\/li\u003e\n\u003cli\u003eSlope Alarm: \u0026lt;75% or \u0026gt;115%\u003c\/li\u003e\n\u003cli\u003eOffset Alarm: Out of ±60mV\u003c\/li\u003e\n\u003cli\u003eOperating Temp : 0~50°C (32~122°F), Max. 80%RH.\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -20~60°C , Humidity: up to 95% without condensation\u003c\/li\u003e\n\u003cli\u003eLow battery indicator\u003c\/li\u003e\n\u003cli\u003epH electrode: 1 meter cable length\u003c\/li\u003e\n\u003cli\u003eDimension(meter) : 175 x 70 x 33mm\u003c\/li\u003e\n\u003cli\u003eWeight: approx. 150g (meter only)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSet Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x \u003cspan\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eProfessional 3-in-1 PH, ORP mV, Temperature Meter\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e1 x FREE pH electrode with ATC\u003c\/li\u003e\n\u003cli\u003e1 x FREE ORP electrode\u003c\/li\u003e\n\u003cli\u003e1 x FREE PH4, PH7 \u0026amp; PH10 Buffer Solutions\u003c\/li\u003e\n\u003cli\u003e1 x FREE Multi-purpose plastic carrying case\u003c\/li\u003e\n\u003cli\u003e4 x FREE 1.5V AAA Battery\u003c\/li\u003e\n\u003cli\u003e1 x Instruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOptional Item \u003c\/span\u003e(not included in set)\u003cbr\u003e         Please click here to buy this optional item \u003ca href=\"https:\/\/www.gainexpress.com\/products\/cdc-az?_pos=1\u0026amp;_sid=e77d3b39d\u0026amp;_ss=r\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eRS232 Software CD \u0026amp; Cable \u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"http:\/\/www.aliexpress.com\/store\/product\/CD-Software-and-Cable-for-Digital-Differential-Air-Pressure-Manometer\/514967_652140975.html\"\u003e\u003c\/a\u003e\u003cbr\u003e\u003cem\u003eor you may contact us at sales(at)gainexpress.com if you want an optional items to be included in your order\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"A01","offers":[{"title":"Default Title","offer_id":606238757,"sku":"ORP-8651","price":151.91,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-orp-8651-orp-8651-3-in-1-heavy-duty-ph-mv-temperature-meter-w-auto-buffer-recognition-193806.jpg?v=1735489623"},{"product_id":"pc-104","title":"PC-104 pH CL2 Chlorine Level Meter Water Quality Tester Monitor","description":"\u003cp\u003e\u003cspan\u003eModel: \u003cstrong\u003ePC-104\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis meter can test water pH and CL2 easily. Its displays testing result on both PH and Chlorine level, no chemical agent need. That's why we recommend this innovative design for this purpose. A balanced swimming pool really only needs to have the pH and chlorine levels checked and corrected on a regular basis, the other chemical values being measured less frequently.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eToo little chlorine results in algal and bacterial growth, waterborne illnesses, cloudy water and insufficient sanitation of the water and too much chlorine can result in eye, nose and skin irritations. Remember, too, that the chlorine in the pool is carcinogenic and we should aim to keep its level to the minimum required for complete disinfection.\u003c\/p\u003e\n\u003cp\u003eThe pH is one of the most important factors in pool water balance and it should be tested and corrected at least every week. pH is the measure of how acid\/alkaline the swimming pool water is. Chlorine, which kills bacteria, algae and microorganisms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003e\u003cbr\u003eFeatures\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTest water pH and Cl2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRecommended chlorine level for pools and spas: 1.2 ~ 1.7ppm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRecommended pH level for pools and spas: 7.2 ~ 7.8pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo adjustment is required for pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy to use and have result instantly and accurately\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLight weight and easy to carry\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy maintenance\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eDimension \u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003emain unit:190 x 120mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eprobe with handle: 150mm long\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eprobe (only): 48mm long (not included black band)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ecable (only): 130mm long\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower Supply: 1 x AA 1.5V Alkaline Battery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 160g (excluded battery)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eSet Includes\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x pH and Cl2 Tester\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Instruction Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 x Probe's Cover\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStandard Factory Packaging\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"C01","offers":[{"title":"Default Title","offer_id":606238869,"sku":"PC-104","price":32.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-pc-104-pc-104-ph-cl2-chlorine-level-meter-water-quality-tester-monitor-494113.jpg?v=1735489646"},{"product_id":"phpowder","title":"pH Powder Calibration Solution 4.01  7.00  10.01 pH set","description":"\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/AbSv3I78Kx4\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePowder buffer solution provide long shelf life and stability and are ideal for low volume use. Each pack makes 250mL of buffer solution. It provides indefinite or long shelf life and stability, ideal for low volume use.It's lightweight, inexpensive and takes up very little space.These buffers are accurate to within ±0.01pH units@ 25°C and remain stable over long periods of time.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePut into solution only what you need,when you need it.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e3 packs of popular pH buffer solutions,\u003cstrong\u003epH4.01\u003c\/strong\u003e, \u003cstrong\u003epH7.00\u003c\/strong\u003e and \u003cstrong\u003epH10.01\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSimple to use. Just add 250ml per powder packet\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePowder has an \u003cstrong\u003eindefinite shelf life\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy 3-step procedure is written at the back of the packet\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv align=\"left\"\u003e \u003c\/div\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eEach pack volume:250 ml\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eEach powder packet\/sachet makes 250ml of solution (when mixed with distilled or de-ionized water)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccuracy : ±0.01pH at 25°C\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eSet Includes:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x pH4.01 Calibration Powder\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x pH7.00 Calibration Powder\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x pH10.01 Calibration Powder\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"K02","offers":[{"title":"Default Title","offer_id":606238885,"sku":"pHpowder","price":18.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-phpowder-ph-powder-calibration-solution-401-700-1001-ph-set-259102.jpg?v=1735489669"},{"product_id":"ph-0093","title":"PH-0093 Digital Pen-type pH Meter Tester Thermometer Temperature 0.00-14.00 pH range","description":"\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eA highly accurate pen-type pH meter that measures both pH level and temperature. Temperature is displayed in degrees Celcius (°C). Newly designed pH meter with reliable, sensitive and provides immediate pH \u0026amp; temperature results simultaneously. pH value varies with temperature, the meter has a built-in ATC (Automatic Temperature Compensation) so pH value will be automatically adjusted in temperature between 0°C - 50°C (32°F - 122°F) thus you don't need to worry about the effect of temperature change on pH level.\u003c\/p\u003e\n\u003cp\u003eAn ideal meter to test pH level of liquids in various industries and applications such as Hydroponics, Aquariums, Swimming Pools, Spa and Food processing and many other applications.\u003cbr\u003e\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eClear and easy-to-read Dual-level LCD\u003c\/li\u003e\n\u003cli\u003eSimultaneous display and viewing of pH and Temperature results\u003c\/li\u003e\n\u003cli\u003eBuilt-in Automatic Temperature Compensation (ATC)\u003c\/li\u003e\n\u003cli\u003eStability Indicator\u003c\/li\u003e\n\u003cli\u003eIdeal for field or on-the-spot measurement\u003c\/li\u003e\n\u003cli\u003eEasy to use with high accuracy\u003c\/li\u003e\n\u003cli\u003eBatteries and Calibration Solution (pH 4.003 \u0026amp; pH 6.864) included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003epH Measuring Range : 0.00-14.00 pH\u003c\/li\u003e\n\u003cli\u003eTemperature Measuring Range : 0.0 - 55.0°C\u003c\/li\u003e\n\u003cli\u003eResolution (pH \/ Temperature): 0.01 pH, 0.1°C\u003c\/li\u003e\n\u003cli\u003eAccuracy (pH \/ Temperature) : ±0.1 pH (±1°C)\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC) : 0 - 50°C (32 - 122°F)\u003c\/li\u003e\n\u003cli\u003eOperating Temperature : 0 - 50°C (32 - 122°F)\u003c\/li\u003e\n\u003cli\u003ePower Supply : 4 x 1.5 V AG-13 (LR44) Button cell Batteries (included)\u003c\/li\u003e\n\u003cli\u003eDuration : 500 hours\u003c\/li\u003e\n\u003cli\u003eSize: approx. 170 x 36 x 23mm (6.69' x 1.41' x 0.91' inch)\u003c\/li\u003e\n\u003cli\u003eWeight : approx. 91g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSet Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x pH \u0026amp; Temperature Meter\u003c\/li\u003e\n\u003cli\u003e1 x 4.003 + 1 x 6.864 + 1 x 9.182 Calibration (Buffer) Solution\u003c\/li\u003e\n\u003cli\u003e1 x Mini-Screw Driver\u003c\/li\u003e\n\u003cli\u003e4 x LR44 Button Batteries\u003c\/li\u003e\n\u003cli\u003e1 x User's Manual\u003c\/li\u003e\n\u003cli\u003e1 x Protective Plastic Carrying Case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":32505981698103,"sku":"PH-0093","price":43.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-0093-ph-0093-digital-pen-type-ph-meter-tester-thermometer-temperature-000-1400-ph-range-308581.jpg?v=1732854238"},{"product_id":"ph-0131","title":"PH-0131 Digital pH \/ ORP mV \/ Temperature Meter Water Quality Tester with ATC Replaceable pH ORP Electrode Detachable Temperature Probe for Aquarium, Laboratory Test, Hydroponics Water Testing Tool","description":"\u003cp\u003epH, ORP (mV), and Temperature Meter. Best tool for aquariums, pool, school laboratory, aquaculture, hydroponics and other water testing procedure. Equipped with replaceable pH and ORP electrode and detachable temperature probe.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDigital 4 digit LCD display\u003c\/li\u003e\n\u003cli\u003eFactory Pre-calibrated\u003c\/li\u003e\n\u003cli\u003eReplaceable pH and ORP Electrode\u003c\/li\u003e\n\u003cli\u003eBNC connections\u003c\/li\u003e\n\u003cli\u003eWith Automatic Temperature Compensation (ATC)\u003c\/li\u003e\n\u003cli\u003eHigh accuracy measurement\u003c\/li\u003e\n\u003cli\u003eUser-friendly easy to operate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDisplay: 4-digital LCD\u003c\/li\u003e\n\u003cli\u003eRange:\n\u003cul\u003e\n\u003cli\u003epH: 0.00~14.00pH\u003c\/li\u003e\n\u003cli\u003eORP: -1999~1999mV\u003c\/li\u003e\n\u003cli\u003eTemperature: 0~100°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eResolution\n\u003cul\u003e\n\u003cli\u003epH: 0.01pH\u003c\/li\u003e\n\u003cli\u003eORP: 1mV\u003c\/li\u003e\n\u003cli\u003eTemperature: 0.1°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eAccuracy\n\u003cul\u003e\n\u003cli\u003epH: ±0.01 pH\u003c\/li\u003e\n\u003cli\u003eORP: ±1%F.S.±1 digit\u003c\/li\u003e\n\u003cli\u003eTemperature: ±0.4°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperating Environment:\n\u003cul\u003e\n\u003cli\u003eTemperature: 0~50°C\u003c\/li\u003e\n\u003cli\u003eHumidity: ≤95%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eInput Impedance: 10¹²Ω\u003c\/li\u003e\n\u003cli\u003ePower Supply: 1 x 9V Alkaline battery\u003c\/li\u003e\n\u003cli\u003eSize: 180 x 83 x 46cm\u003c\/li\u003e\n\u003cli\u003eWeight: 290g (no battery)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSet Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 3-in-1 Water Quality Tester\u003c\/li\u003e\n\u003cli\u003e1 x Replaceable pH Electrode\u003c\/li\u003e\n\u003cli\u003e1 x Replaceable ORP Electrode\u003c\/li\u003e\n\u003cli\u003e1 x Detachable Temperature probe\u003c\/li\u003e\n\u003cli\u003e1 x Mini-screwdriver\u003c\/li\u003e\n\u003cli\u003e2 x Bottles of pH Calibration Solution (4.003pH \u0026amp; 6.864pH)\u003c\/li\u003e\n\u003cli\u003e1 x English User Manual\u003c\/li\u003e\n\u003cli\u003eCarrying Case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":32505981861943,"sku":"PH-0131","price":96.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-0131-ph-0131-digital-ph-orp-mv-temperature-meter-water-quality-tester-with-atc-replaceable-ph-orp-electrode-detachable-temperature-probe-for-aqu-861399.jpg?v=1732854122"},{"product_id":"ph-014_red","title":"PH-014 Digital Pen Type pH Meter 0-14pH ATC","description":"\u003cdiv\u003e\u003cspan\u003eModel: \u003cstrong\u003ePH-014\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eA pen style pH meter that measures pH level with great accuracy. High quality \u0026amp; lightweigh twith reliable and unwavering performance. Compact design with pocket clip, nohassle on carrying it anywhere. Ideal instrument for aquarium, fishing industry,swimming pool, school, laboratory, food \u0026amp; beverage etc.\u003c\/span\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003eSpecifications\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring pH range : 0.0 - 14.0 pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution : 0.1 pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccuracy : ±0.1 pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating Temperature : 0 - 50°C (32 - 122°F)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCalibration : 1 point\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWith \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAutomatic Temperature Compensation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e (ATC)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePower Supply : 4 x 1.5V Button cell batteries (\u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eincluded\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eItem size : approx. 150 (L) x 28 (W) x 19 (thickness) mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eItem weight : approx. 53g (after installed batteries)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePre-calibrated at factory\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupplied with a screw driver \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eOperating Information:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eRemove the protective cap and switch on the unit\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIf it will be used for the first time, or haven't been used for a long time, calibrate the unit.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDip the electrode into the sample solution. Stir gently and wait for a few seconds till the displayed value is stable.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAfter using, dip the electrode into distilled or deionized water. Stir gently. Then use tissue paper for it to gently absorb the water from the glass bulb. This action must be done very carefully in order to avoid damaging the glass bulb.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWhen storing the pH meter, switch off the unit, put a few drops of distilled water or deionized water on the spoon inside the cap, to rinse the glass bulb. Then put the cap onto the pH meter.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIf the unit cannot be switched on or the display fades, replace all the batteries.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eSet Includes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x pH meter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Mini-screw driver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e4 x 1.5V Button cell batteries \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e(installed)\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x InstructionSheet\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStandard factory package \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":606239113,"sku":"PH-014","price":23.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/ph-014-digital-pen-type-meter-0-14ph-atc-meters-401.jpg?v=1750748263"},{"product_id":"ph-025","title":"PH-025 Digital pH Monitor Meter ATC 0.00~14.00pH w\/ Power Adaptor \u0026 1.5M Long Electrode Probe, Continuous Water Quality Monitoring Tester Kit Aquarium Hydroponics Spa Tank Pool Laboratories Portable","description":"\u003cp align=\"left\"\u003eThis economic handy meter come with dual power supply, via battery for on the go test or via power adaptor for long term continuous testing and monitoring. Designed to measure the pH level of any type of water digitally. Reading is shown clearly on its 1.5\" large display monitor. It comes with an approximately 1.5m long cable (from the meter to sensor) and easy operations are done with just one power button.\u003c\/p\u003e\n\u003cp\u003eThis ph monitor is widely applicable. Suitable for aquarium, swimming pool, spa, laboratories, hospitals, hydroponic purposes and other applications that needed accurate pH measuring and monitoring.\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cstrong\u003e\u003cbr\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e1.5m (4.92 ft) long cable\u003c\/li\u003e\n\u003cli\u003eBuilt-in Automatic Temperature Compensation (ATC)\u003c\/li\u003e\n\u003cli\u003eEasy to use with high accuracy\u003c\/li\u003e\n\u003cli\u003eLarge LCD with 4-digits Display\u003c\/li\u003e\n\u003cli\u003ePre-calibrated at factory\u003c\/li\u003e\n\u003cli\u003eEasy calibration via mini-screwdriver\u003c\/li\u003e\n\u003cli\u003eDual power supply- can be powered by batteries or DC6V power adaptor (Both are included)\u003c\/li\u003e\n\u003cli\u003eBatteries are included for easy mobility and less hanging wires in your aquarium area\u003c\/li\u003e\n\u003cli\u003eComes with a clip that holds the main unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range: 0.00 - 14.00 pH\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01 pH\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.1 pH\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC): 0 - 50°C (32 - 122°F)\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0 - 50°C (32 - 122°F)\u003c\/li\u003e\n\u003cli\u003eBatteries: 4 x 1.5V (AG13 Button Battery) (included)\u003c\/li\u003e\n\u003cli\u003eDimensions: approx. 60 x 55 x 23mm (2.36' x 2.17' x 0.91' inch)\u003c\/li\u003e\n\u003cli\u003eWeight: approx. 75g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSet includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e1 x mini pH monitor with an external electrode\u003c\/li\u003e\n\u003cli\u003e1 x protective cap for electrode\u003c\/li\u003e\n\u003cli\u003e1 x 4.01pH calibration powder\u003c\/li\u003e\n\u003cli\u003e1 x 6.86pH calibration powder\u003c\/li\u003e\n\u003cli\u003e1 x 9.18pH calibration powder\u003c\/li\u003e\n\u003cli\u003e1 x Mini Screwdriver\u003c\/li\u003e\n\u003cli\u003e4 x AG13 Button Battery\u003c\/li\u003e\n\u003cli\u003e1 x Clip\u003c\/li\u003e\n\u003cli\u003e1 x Sturdy carrying case\u003c\/li\u003e\n\u003cli\u003e1 x Suction Cap\u003c\/li\u003e\n\u003cli\u003e1 x English Instruction Manual\u003c\/li\u003e\n\u003cli\u003e1 x\u003cspan\u003e \u003c\/span\u003ePower Adaptor\u003c\/li\u003e\n\u003cli\u003eStandard factory packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"K03","offers":[{"title":"110V","offer_id":13598554226743,"sku":"PH-025_US","price":37.9,"currency_code":"USD","in_stock":false},{"title":"220V","offer_id":13598563565623,"sku":"PH-026_EU","price":37.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-025-us-ph-025-digital-ph-monitor-meter-atc-0001400ph-w-power-adaptor-15m-long-electrode-probe-continuous-water-quality-monitoring-tester-kit-aqu-269546.jpg?v=1735489669"},{"product_id":"ph-025wo","title":"PH-025WO Digital pH Monitor Meter ATC 0.00~14.00pH w\/ 1.5M Long Cable Electrode Probe, Water Quality Monitoring Tester Kit Aquarium Hydroponics Spa Tank Pool Laboratories Mini Portable","description":"\u003cp align=\"left\"\u003eThis economic handy meter which runs on batteries is designed to measure pH level of any type of water digitally. See clear readings in its 1.5\" large display monitor. It comes with approximately 1.5m long cable (from the meter to sensor) and easy operations are done with just one power button.\u003c\/p\u003e\n\u003cp\u003eThis pH monitor is widely applicable. Suitable for aquarium, swimming pool, spa, laboratories, hospitals, hydroponic purposes and other applications that needed accurate pH measuring and monitoring.\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cstrong\u003e\u003cbr\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e1.5m (4.92 ft) long cable\u003c\/li\u003e\n\u003cli\u003eBuilt-in Automatic Temperature Compensation (ATC)\u003c\/li\u003e\n\u003cli\u003eEasy to use with high accuracy\u003c\/li\u003e\n\u003cli\u003eLarge LCD with 4-digits Display\u003c\/li\u003e\n\u003cli\u003ePre-calibrated at factory\u003c\/li\u003e\n\u003cli\u003eEasy calibration via mini-screwdriver\u003c\/li\u003e\n\u003cli\u003eDual power supply- can be powered by batteries or DC6V power adaptor (optional accessory, not included in the set)\u003c\/li\u003e\n\u003cli\u003eBatteries are included for easy mobility and less hanging wires in your aquarium area\u003c\/li\u003e\n\u003cli\u003eComes with a clip that holds the main unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range: 0.00 - 14.00 pH\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01 pH\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.1 pH\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC): 0 - 50°C (32 - 122°F)\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0 - 50°C (32 - 122°F)\u003c\/li\u003e\n\u003cli\u003eBatteries: 4 x 1.5V (AG13 Button Battery) (included)\u003c\/li\u003e\n\u003cli\u003eDimensions: approx. 60 x 55 x 23mm (2.36' x 2.17' x 0.91' inch)\u003c\/li\u003e\n\u003cli\u003eWeight: approx. 75g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSet includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Mini pH monitor with an external electrode\u003c\/li\u003e\n\u003cli\u003e1 x Protective cap for electrode\u003c\/li\u003e\n\u003cli\u003e1 x 4.01pH calibration powder\u003c\/li\u003e\n\u003cli\u003e1 x 6.86pH calibration powder\u003c\/li\u003e\n\u003cli\u003e1 x 9.18pH calibration powder\u003c\/li\u003e\n\u003cli\u003e1 x Mini Screwdriver\u003c\/li\u003e\n\u003cli\u003e4 x AG13 Button Battery\u003c\/li\u003e\n\u003cli\u003e1 x Clip\u003c\/li\u003e\n\u003cli\u003e1 x Sturdy carrying case\u003c\/li\u003e\n\u003cli\u003e1 x Suction Cap\u003c\/li\u003e\n\u003cli\u003e1 x English Instruction Manual\u003c\/li\u003e\n\u003cli\u003eStandard factory packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":32506075217975,"sku":"PH-025WO","price":33.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/products\/1-gainexpress-gain-express-ph-meter-PH-025WO-preview_814.jpg?v=1565076760"},{"product_id":"ph-031","title":"PH-031 Digital Pen Type pH Meter Tester 0.00 - 14.00 pH Range","description":"\u003cp\u003e\u003cspan\u003eModel: \u003cstrong\u003ePH-031\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA high accuracy pen-type pH meter designed to test pH level of liquids in various industries and applications such as Hydroponics, Aquariums, Swimming Pools, Spas and Food processing and many others. pH level varies with temperature and affects the accuracy of reading results even the slightest change in temperature. This meter has Automatic Temperature Compensation (ATC) that takes care of the effects of temperature in pH level, it automatically adjust the meter to the current temperature of the environment. pH value will be automatically adjusted in temperature between 0 - 50 °C (32 - 122 °F).\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cbr\u003eFeatures \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eStandard: \u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eCE\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eApproved by European Directives for health and safety\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHighly accurate, up to ±0.1 pH accuracy\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLightweight, compact and portable pen-type design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt-in Automatic Temperature Compensation (ATC)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComes complete with batteries, calibration solutions and plastic carrying case\u003c\/span\u003e\u003cbr\u003e  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring Range : 0.00 - 14.00 pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution : 0.01 pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccuracy : ±0.1 pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic Temperature Compensation : 0 - 50°C (32 - 122°F)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating Temperature : 0 - 50°C (32 - 122°F)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower Supply: 2 x 3V (CR2032) Button Cell Batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSize : 150 x 27 x 20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWeight : 46g\u003c\/span\u003e\u003cbr\u003e  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eSet Includes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x Digital Pen type pH meter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 x Calibration Solution (pH 4.003 \u0026amp; pH 6.864)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Mini Screwdriver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 x 3V Button Cell Batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Instruction Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrosted White Plastic Carrying Case\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":606239477,"sku":"PH-031","price":27.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-031-ph-031-digital-pen-type-ph-meter-tester-000-1400-ph-range-940375.jpg?v=1732854121"},{"product_id":"ph-032","title":"PH-032 Waterproof pH Meter w\/ replaceable pH Electrode","description":"\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eThe waterproof ph meter  has the new and improved sleek design and indeed measures accurately. This meter is design to be submerged in water or liquid solution to test and monitor the pH level of the solution to be tested or monitor. With its rubber gasket, you are assured that it is 100% WATERPROOF \u0026amp; TIGHTLY SEALED to prevent water or liquid not even a small amount to leak inside the meter to ensure the 100% accuracy of this unit even if the electrode is submerge in the solution for a long period. This pocketsize and lightweight and can be used in a large number of applications. In addition, the pH ELECTRODE is REPLACEABLE so you don't have to buy a new ph Meter if the electrode needs to be replaced. This sleek pH meter is so easy to calibrate and within seconds, it will give you the exact reading.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis pH meter uses only four button-type batteries that can easily be replace. With the batteries on, mobility is no longer a problem.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eHave the newly improved mobile pH meter with replaceable electrode in your pocket and use it everywhere you go! Practical yet precise and reliable pen-type ph meter!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003eFeatures:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCOMPLETELY WATERPROOF \u0026amp; TIGHTLY SEALED\u003c\/li\u003e\n\u003cli\u003eCompact and light weight for mobility\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eREPLACEABLE PH ELECTRODE\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eWith large display system for ease of use and has the digital readout of 0.0 to 14.0 pH levels\u003c\/li\u003e\n\u003cli\u003eEasy push power button and calibration\u003c\/li\u003e\n\u003cli\u003eComes with lace lock holder to secure the unit\u003c\/li\u003e\n\u003cli\u003eOperates on 4 button type batteries\u003c\/li\u003e\n\u003cli\u003eHas an accuracy level of ±0.1pH with automatic temperature compensation\u003c\/li\u003e\n\u003cli\u003eComes with manual on how to use, calibration \u0026amp; maintenance\u003c\/li\u003e\n\u003cli\u003eComes with 2 bottles free solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range: 0.00~14.00pH\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.1pH\u003c\/li\u003e\n\u003cli\u003eResolution : 0.01pH\u003c\/li\u003e\n\u003cli\u003eOperating temperature : 0°C~50°C\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation : 0°C~50°C\u003c\/li\u003e\n\u003cli\u003ePlug : Fixed Electrode\u003c\/li\u003e\n\u003cli\u003ePower Supply : 4 x 1.5V Battery (button-type)\u003c\/li\u003e\n\u003cli\u003eDimensions : 165mm x 26mm x 26mm\u003c\/li\u003e\n\u003cli\u003eWeight : 63g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e \u003cbr\u003e \u003cstrong\u003eOperating Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRemove the protective cap.\u003c\/li\u003e\n\u003cli\u003eRinse first the electrode with distilled water, and wipe it with filter paper.\u003c\/li\u003e\n\u003cli\u003eTurn the meter on by pressing the ON\/OFF key once.\u003c\/li\u003e\n\u003cli\u003eImmerse the pH meter electrode in the solution to be tested and stir gently then wait for the reading to stabilize.\u003c\/li\u003e\n\u003cli\u003eOnce done measuring the solution, rinse the electrode with water to minimize contamination.\u003c\/li\u003e\n\u003cli\u003ePress the ON\/OFF key again to turn the meter off.\u003c\/li\u003e\n\u003cli\u003eStore the electrode with a few drops of distilled water or ionized water in the protective cap.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e \u003cbr\u003e \u003cspan\u003e\u003cstrong\u003eMaintenance:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e \u003cstrong\u003eGENERAL REMINDER:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBe sure to put back the electrode protective cap after each use.\u003c\/li\u003e\n\u003cli\u003eSecure the battery compartment cap always.\u003c\/li\u003e\n\u003cli\u003eThe glass bulb of the electrode is fragile. Use it carefully and cautiously. Do not touch it with hard or pointy objects nor with your fingertip.\u003c\/li\u003e\n\u003cli\u003eWhen removing the excess water inside the electrode mouth, wipe gently and carefully.\u003c\/li\u003e\n\u003cli\u003eClean the electrode before and after you use the unit. It can only be clean with distilled or ionized water specifically\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePH CALIBRATION:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eImmerse the electrode in pH 6.86 (under the temperature of 25°C) standard calibration (buffer) solution of phosphate and gently shake it.\u003c\/li\u003e\n\u003cli\u003eAllow the reading to stabilize. To calibrate, use the mini-screw driver to turn or rotate the calibration knob (inside the battery compartment) until the reading shows the corresponding calibration solution.\u003c\/li\u003e\n\u003cli\u003eImmerse the electrode in pH4.01 or pH9.18, the standard calibration (buffer) solution of borax.\u003c\/li\u003e\n\u003cli\u003eWait 'till the calibration (buffer) solution obtained the corresponding measurement temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTHE UNIT MUST BE RE-CALIBRATED WHENEVER:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApproximately a month has passed from the last calibration\u003c\/li\u003e\n\u003cli\u003eThe electrode has been used very often in a day\u003c\/li\u003e\n\u003cli\u003eThe utmost accuracy is required\u003c\/li\u003e\n\u003cli\u003eReplace the new electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBATTERY INSTALLATION:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIf the meter can't be switched on or the display is fading, you must replace the battery with the new ones.\u003c\/li\u003e\n\u003cli\u003eRemove the battery compartment cap and pull out the battery case gently.\u003c\/li\u003e\n\u003cli\u003eCheck the battery polarity (\"+\" \u0026amp; \"-\") before putting the new batteries.\u003c\/li\u003e\n\u003cli\u003ePut back the battery compartment inside the compartment then secure the battery compartment cap in place.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBATTERY INSTALLATION:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRemove the electrode protective cap and rotate (in more like forward motion) the replaceable electrode carefully until all the electrode has been pulled out.\u003c\/li\u003e\n\u003cli\u003eReplace it with the new electrode. Make sure that the gasket is in place before screwing the new electrode to the meter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e \u003cbr\u003e \u003cspan\u003e\u003cstrong\u003eSet included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x pH Meter\u003c\/li\u003e\n\u003cli\u003e1 x Lace lock holder\u003c\/li\u003e\n\u003cli\u003e1 x Mini-screw driver\u003c\/li\u003e\n\u003cli\u003e1 x Operations and maintenance manual\u003c\/li\u003e\n\u003cli\u003e1 x Frosted white sturdy traveling case\u003c\/li\u003e\n\u003cli\u003e2 x FREE Buffer Solutions  \u003c\/li\u003e\n\u003c\/ul\u003e\nPH-032","brand":"K03","offers":[{"title":"Default Title","offer_id":606239541,"sku":"PH-032","price":34.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-032-ph-032-waterproof-ph-meter-w-replaceable-ph-electrode-771711.jpg?v=1735489665"},{"product_id":"ph-002","title":"PH-002 Waterproof pH Meter with Auto Buffer Recognition °C °F \u0026 Replaceable Electrode","description":"\u003cp\u003e\u003cspan\u003eModel: \u003cstrong\u003ePH-002\u003c\/strong\u003e \u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"paragap1\"\u003eThis Pen-type pH Meter is for measuring the acidity or alkalinity of a substance. It has an accuracy of \u003cb\u003e±0.1pH \u003c\/b\u003eand \u003cb\u003e3-point of calibration\u003c\/b\u003e with a glass tip replaceable electrode suitable for your testing needs.\u003c\/p\u003e\n\u003cp class=\"paragap1\"\u003eWide range of applications such as aquarium, beverage, aquaculture, food processing, laboratory, quality control, school \u0026amp; colleges, swimming pools, water conditions, hydroponics and more.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"bullet1\"\u003eLCD indicates and display both \u003cb\u003epH\u003c\/b\u003e and \u003cb\u003etemperature\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eSelectable temperature unit (\u003cb\u003e°C\/°F\u003c\/b\u003e)\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003e\u003cb\u003eReplaceable pH Electrode\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eWith \u003cb\u003e\u003cspan color=\"#FF0000\"\u003eauto-buffer solution recognition\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eBacklight function\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003e\n\u003cb\u003eIP65\u003c\/b\u003e Waterproof protection level\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eAutomatic Shutdown\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003e3 Point Calibration\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eHas  \u003cb\u003eAutomatic Temperature Compensation\u003c\/b\u003e (ATC)\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eGlass-tipped probe\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eCompact pen size and lightweight for mobility\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eWith \u003cb\u003eCE\u003c\/b\u003e \u003cb\u003eRoHS\u003c\/b\u003e Marking, passed \u0026amp; comply with all the necessary health and safety required standards set by the European Directives\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli class=\"bullet1\"\u003eRange\u003c\/li\u003e\n\u003cul\u003e\n\u003cli class=\"bullet1\"\u003epH: 0.00~14.00pH\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eTemperature: 0~50°C (32~122°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli class=\"bullet1\"\u003eResolution\u003c\/li\u003e\n\u003cul\u003e\n\u003cli class=\"bullet1\"\u003epH: 0.01pH\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eTemperature: 0.1°C (0.2°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli class=\"bullet1\"\u003eAccuracy\u003c\/li\u003e\n\u003cul\u003e\n\u003cli class=\"bullet1\"\u003epH: ±0.1pH\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eTemperature: ±0.1°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli class=\"bullet1\"\u003eCalibration: 3 points\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eBattery: 4 x 1.5V (AG-13)\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eTemperature Compensation: 0~50°C\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eOperation Temperature: 0~50°C\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eDimensions: 188mm x 35mm x 35mm\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eWeight: 80g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eSet Includes:\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"bullet1\"\u003e1 x Pen-type pH Meter with Auto Buffer Recognition\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003e4 x 1.5V Battery (Installed)\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003e3 x Calibration Buffer Powder (pH 4.01, pH6.86 and pH9.18)\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eEnglish Instruction Manual\u003c\/li\u003e\n\u003cli class=\"bullet1\"\u003eStandard Factory Package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"H02","offers":[{"title":"Default Title","offer_id":606239561,"sku":"PH-002","price":35.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-002-ph-002-waterproof-ph-meter-with-auto-buffer-recognition-0c-0f-replaceable-electrode-341961.jpg?v=1735489670"},{"product_id":"ph-201","title":"PH-201 Digital pH Controller + Electrode + Solutions 110V or 220V","description":"\u003cp\u003e\u003cspan\u003eModel: \u003cstrong\u003ePH-201 \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eThe Digital PH Controller offers a convenient way for you to keep an eye on the various water parameters in your tank. With the electrodes in place, it can monitor the pH readings at all times while controlling the pH-related devices (such as CO2 system, air outlet stone,oxygen pump, electromagnetic valve, etc.)\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe PH-201 controller will track pH, which is directly related to CO2 concentration. The pH controller will keep pH and CO2 releases consistent and appropriate for your aquarium.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eCan be used for every purpose, from a goldfish bowl to a full-blown reef tank. It can also be used for fish hatcheries, wine production, swimming pools, floristics, analysis of fluids (ph-value), ponds, various industrial applications, Pisciculture, Koi, Kois, Boiler,Pond, Spa, orchids breeding, breeder and hemp!\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cstrong\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eProvides large LED display and values are readable within few seconds\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eControl range is digitally adjustable from pH 3.5 to 10.5\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWith high input impedance avoids measuring error\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt in SLOPE and CAL. adjust knob,easy for single point or two points pH calibration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFront LED lamp indicate when relay \"ON\".\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChoice of wall-mount or hung in installing the controller\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncludes a BNC connection for use with a PH Electrode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWith fast response and easy to calibrate replaceable pH electrode and comes with complete calibration fluids\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIt is very reliable, stable and transportable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe operation is simple and comfortable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eController will handle up to 5 amps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUses the Protection Dead Band feature,an additional feature of PH-201 in which the controller automatically turned-off or shut down to protect your unit from erroneous readings\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring range: 0.00~14.00PH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccuracy: ±(0.1%+2 digits) after calibration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution: 0.01PH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSet Range: 3.50~10.50PH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRelay Contact : 5A for AC 110V or 220V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower Requirement : AC110V ±10% 60Hz \/ AC220V ±10% 50Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVoltage: 110V or 220V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEnvironment: Temperature is 0°C~50°C and Humidity is \u0026lt;95%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions: 150mm×85mm×40mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 580g\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eSet Includes\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x 1 x pH Controller\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x FREE bottle of pH6.864\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x FREE bottle of pH4.003 calibration solutions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x English Operation Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Mini-screwdriver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Controller Holder\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Power Adaptor \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Detachable pH electrode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStandard FactoryPackaging \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K03","offers":[{"title":"EU","offer_id":12655990472759,"sku":"PH-201_EU","price":119.0,"currency_code":"USD","in_stock":false},{"title":"US","offer_id":12713477111863,"sku":"PH-201_US","price":119.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-201-eu-ph-201-digital-ph-controller-electrode-solutions-110v-or-220v-275556.jpg?v=1735489670"},{"product_id":"ph-203","title":"PH-203 Digital 2-in-1 pH ORP mV CO2 Controller Meter 0.00~14.00PH Range","description":"\u003cp\u003eThe Digital ORP\/pH Controller is a very reliable and precise measuring instrument wherein the role of an ORP controller and a pH controller are merged. This allows you to monitor and control pH and ORP levels with a single unit. The controller provides a suitable way for you to keep an eye on the different water parameters in your tank. Simply attach solenoid valves or dosing pumps to the plug sockets supplied to dose CO2 or Ozone as required. It has a replaceable ORP and pH electrodes and FREE 2 bottles of calibration solution. The large and informative display of the PH-203 is capable of displaying the status of the current conditions in the aquarium and setting values.\u003c\/p\u003e\n\u003cp\u003e An ozone generation unit or ozonizers and CO2 system are control devices that regulate the amount of ozone and release carbon dioxide of the water respectively, which largely affects the pH level and filtration of the system. Ozone is an EFFECTIVE AGENT AGAINST PARASITES AND BACTERIAL DISEASES and an excellent water sanitizer, antipollution and disinfectant. A CO2 system helps your fish to RELIEVE STRESS stress and your plants to grow, flourish, and have vibrant colors.\u003c\/p\u003e\n\u003cp\u003eThis controller can be use in aquacultures, beverage, fish hatcheries, water ponds, whirlpool, spa, food processing, photography, laboratory, paper industry, swimming pool, plating industry, quality control, water conditioning, and schools. \u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"line-height: 1.2;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAccurately, easily and systematically MONITORS and CONTROLS pH and ORP with a single unit\u003c\/li\u003e\n\u003cli\u003eIt features fast response and easy to calibrate REPLACEABLE pH \u0026amp; ORP Electrodes just so you won't have to buy the whole unit when one of the electrode is not working plus it comes with 2 bottles of calibration fluids for free. A BNC connections for use with a replaceable pH and ORP electrode is also provided for easy connection.\u003c\/li\u003e\n\u003cli\u003eAPPROVED BY STRICT QUALITY AND SAFETY STANDARDS ensures a reliability, stability, long and trouble-free life and can be transported easily.\u003c\/li\u003e\n\u003cli\u003ePower Plug for CO2 or Ozone Solenoids or Dosing Pumps are provided\u003c\/li\u003e\n\u003cli\u003eIt has an easy to use interface and monitored data continuously thru the large display system in just few seconds.\u003c\/li\u003e\n\u003cli\u003eUses the Protection Dead Band feature, an additional feature of PH-203 in which the controller automatically turned-off or shut down to protect your unit from erroneous readings\u003c\/li\u003e\n\u003cli\u003eIt includes a comprehensive User's manual, which contains instructions and examples on how to best utilize your pH and ORP Controller.\u003c\/li\u003e\n\u003cli\u003eIt can handle up to 5 amps and the front LED lamp indicate when relay is \"ON\".\u003c\/li\u003e\n\u003cli\u003eGives you an option to mount it on the wall or hung on the solution's container while using or installing the unit. \u003c\/li\u003e\n\u003cli\u003eAn adaptor for US or UK or Australia or Europe is provided  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range\u003cbr\u003e         PH: 0.00~14.00PH\u003cbr\u003e         ORP: 0~±1999mV\u003c\/li\u003e\n\u003cli\u003eAccuracy\u003cbr\u003e         PH: ±(0.1%+2 digits) after calibration\u003cbr\u003e         ORP: ±5 mV\u003c\/li\u003e\n\u003cli\u003eResolution\u003cbr\u003e         PH: 0.01PH\u003cbr\u003e         ORP:1mV\u003c\/li\u003e\n\u003cli\u003eSet Range \u003cbr\u003e        PH: 3.50~10.50PH\u003cbr\u003e        ORP: 0~1000mV\u003c\/li\u003e\n\u003cli\u003eEnvironment Temperature: 0~50°C Humidity\u0026lt;95%\u003c\/li\u003e\n\u003cli\u003ePower Supply: 220V-230V or 100V-110V\u003c\/li\u003e\n\u003cli\u003eDimension: 150mm x 85mm x 40mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cstrong\u003e\u003cstrong\u003eSet Includes \u003c\/strong\u003e\u003c\/strong\u003e \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Digital ORP\/pH Controller\u003c\/li\u003e\n\u003cli\u003e1 x bottle of 4.003 + 1 bottle 6.864 calibration (buffer) solutions (FREE)\u003c\/li\u003e\n\u003cli\u003e1 x Operation Manual\u003c\/li\u003e\n\u003cli\u003e1 x Mini-screw driver\u003c\/li\u003e\n\u003cli\u003e1 x Controller Holder\u003c\/li\u003e\n\u003cli\u003e1 x Adaptor for Australia or UK or US or Europe (We can provide the different type of adaptor, i.e Australia, UK or US or Europe)\u003c\/li\u003e\n\u003cli\u003e1 x Detachable pH electrode\u003c\/li\u003e\n\u003cli\u003e1 x Detachable ORP electrode  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K03","offers":[{"title":"110V","offer_id":32471239721015,"sku":"PH-203_US","price":125.9,"currency_code":"USD","in_stock":false},{"title":"220V","offer_id":32471239753783,"sku":"PH-203_EU","price":125.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-203-us-ph-203-digital-2-in-1-ph-orp-mv-co2-controller-meter-0001400ph-range-416863.jpg?v=1735489670"},{"product_id":"ph-251","title":"PH-251 New pH Meter + Adaptor + Replaceable Electrode","description":"\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eThis pH monitor is equipped with \u003c\/span\u003e\u003cspan\u003e\u003cspan\u003ebuilt-in rechargeable battery\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cspan\u003e\u003cspan\u003ewaterproof BNC replaceable electrode \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003efor continuous measurement of pH level in Aquariums,Swimming Pools, Spa, Laboratories and Hydroponic uses. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003e\u003cbr\u003eFeatures\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBuilt-in Rechargeable Battery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003epH Replaceable waterproof BNC electrode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBig and clear reading results\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompact and light weight \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy push power button operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSimple calibration process with the mini-screw driver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eYour cho\u003c\/span\u003e\u003cspan\u003eice of Power Cord (choose 1 from the available power cords: US, Australia,UK, Europe)\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMeasure range: 0.00~14.00 pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution : 0.01PH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e  Accuracy:\u003c\/span\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e±0.1PH(| T1 - T2 | \u0026gt; 5°C) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e±0.2PH (| T1 - T2| \u0026gt;5°C)\u003c\/span\u003e\u003cbr\u003e \u003cspan\u003e(T1 -- denotes environment temperature; T2 -- denotes testliquid temperature)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating Temperature:0°C ~ 50°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eRechargeable B\u003c\/span\u003e\u003cspan\u003eattery:6 V DC (Included)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAC Power Supply: 220V or 110V Power Adaptor (US, UK, Australia and Europe Adaptor available)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSize:112 x 86 x 57mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: approx.160g\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eSet Includes\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x pH monitor\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt-in Re-chargeable Battery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Replaceable WaterproofpH Electrode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x PH6.864 Calibration Solution\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x PH4.003 Calibration Solution\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Mini-screw driver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Operations Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x AC Power Adaptor (choose 1 from the available adaptor for US, Australia, UK, Europe)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e  Standard Factory Package\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":12987585757239,"sku":"PH-251","price":48.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-251-ph-251-new-ph-meter-adaptor-replaceable-electrode-342003.jpg?v=1735489676"},{"product_id":"ph-301","title":"PH-301 DIGITAL PH CONTROLLER + BNC ELECTRODE 220V or 110V CO2","description":"\u003cp\u003e\u003cspan\u003eThis pH Controller is an upgraded version of our PH-201 Controller. It allows you to monitor pH as well as controlling pH levels using just one unit. The large and informative display is capable of displaying the status of the current conditions in the aquarium and setting values. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis controller can be used in aquaculture, beverage, fish hatcheries, water ponds, whirlpool, spa, food processing, photography, laboratory, paper industry, swimming pool, plating industry, quality control, water conditioning, schools and many other applications.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cstrong\u003e\u003cbr\u003eFeatures\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003e\u003cstrong\u003eWith OPTIONAL HI\/LO ACTION\u003c\/strong\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003e\u003cstrong\u003eBest for heavy duty or Industrial use\u003c\/strong\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003e\u003cstrong\u003eBigger and re-engineered body structure\u003c\/strong\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003e\u003cstrong\u003eFast response and easy to calibrate\u003c\/strong\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"\"\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003e\u003cstrong\u003eREPLACEABLE pH Electrode\u003c\/strong\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eDurable and built to last long \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eWith big digital display and accurately measures \u0026amp; is easy to use \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eHeavy-duty, Compact \u0026amp; Lightweight for mobility and extremely easy-to-use \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eAccurate testing results guaranteed \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eAPPROVED BY STRICT QUALITY AND SAFETY STANDARDS which ensures a reliability, durability, long and trouble-free life \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eUses the Protection Dead Band feature\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eGives you an option to mount it on the wall or hung on the solution's container while using or installing the unit \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"\"\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eAvailable in 110V or 220V\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e \u003cspan\u003e\u003cspan\u003e\u003cstrong\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range: 0.00~14.00pH\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01PH\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.1%+2 digits\u003c\/li\u003e\n\u003cli\u003eInput Resistance: 10\u003csup\u003e12\u003c\/sup\u003eΩ\u003c\/li\u003e\n\u003cli\u003eSet Range: 3.50~10.50pH\u003c\/li\u003e\n\u003cli\u003eVoltage: available in 110V \u0026amp; 220V\u003c\/li\u003e\n\u003cli\u003eCalibration: Double Points\u003c\/li\u003e\n\u003cli\u003eDisplay 4 LED display reading\u003c\/li\u003e\n\u003cli\u003ePower Supply: in Label\u003c\/li\u003e\n\u003cli\u003eEnvironment: \n\u003cul\u003e\n\u003cli\u003eOperation Temp. : 0 to 50 °C (32 to 122 °F)\u003c\/li\u003e\n\u003cli\u003eAmbient Humidity : 90 or less than 90 % R. H.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003ePower Requirement : AC110V ±10% 60Hz \/ AC220V ±10% 50Hz\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 2 watts\u003c\/li\u003e\n\u003cli\u003eRelay Contact : 5A for AC 110V and 220V\u003c\/li\u003e\n\u003cli\u003eOutput Voltage : the same as power supply voltage\u003c\/li\u003e\n\u003cli\u003eDimensions: 160x 102x 40mm\u003c\/li\u003e\n\u003cli\u003eWeight: 772g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cstrong\u003eSet Includes \u003c\/strong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Digital pH Controller\u003c\/li\u003e\n\u003cli\u003eFREE pH4.003 + pH6.864 calibration (buffer) solutions\u003c\/li\u003e\n\u003cli\u003e1 x Detachable pH electrode\u003c\/li\u003e\n\u003cli\u003e1 x English Operation Manual\u003c\/li\u003e\n\u003cli\u003e1 x Mini-screw driver\u003c\/li\u003e\n\u003cli\u003e1 x Controller Holder for hanging the device\u003c\/li\u003e\n\u003cli\u003e1 x Power Cord \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K03","offers":[{"title":"110V","offer_id":606240013,"sku":"PH-301_US","price":109.0,"currency_code":"USD","in_stock":false},{"title":"220V","offer_id":13835862999095,"sku":"PH-301_EU","price":109.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-301-us-ph-301-digital-ph-controller-bnc-electrode-220v-or-110v-co2-809442.jpg?v=1732854231"},{"product_id":"ph-803","title":"PH-803 Digital pH ORP Redox 2 in 1 Controller Monitor w\/ Output Power Relay Control, Electrode Probe BNC, Water Quality Meter Online Continuous Measurement Kit, for Aquarium Hydroponics Plant Pool Spa","description":"\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eThis 2-in-1 pH \u0026amp; ORP controller and monitor \u003cstrong\u003esimultaneously \u003c\/strong\u003e\u003cstrong\u003emeasures and displays both pH value and redox value (ORP)\u003c\/strong\u003e. It comes with \u003cstrong\u003e2 BNC electrodes (pH and redox) and\u003c\/strong\u003e \u003cstrong\u003e2 output power sockets.\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eBoth electrodes are detachable, they can be replaced easily at any time. As for the relay output power sockets, you can plug in your own 110V\/ 220V device to it, e.g. air outlet stone, O3 ozonizer, oxygen pump, CO2-regulator, electromagnetic valve, and other ORP \u0026amp; pH control devices. Simply set the desired Hi\/ Low pH\/redox values in the controller. It will turn on your device if the currently measured pH or Redox value is lower than your set value, and it will turn off your device if the measured value is higher than your set value. \u003c\/p\u003e\n\u003cp class=\"paragap1\"\u003e\u003cstrong\u003eApplications \u0026amp; Usage:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"paragap1\"\u003eFish hatchery, wine production, swimming pool (bath), laboratories, water conditioning, schools \u0026amp; colleges, floristics, for analysis of fluids (ph-value), ponds, various industrial application, Pisciculture, Koi, Kois, Boilere, Pond, Pool, Spa, swimming pools, pool, analysis of liquids, orchids breed, breeder, hemp, grow, etc. The suitable way for you to keep an eye on the different water parameters in your tank! A MUST to have a perfect way to automate 7 regulate the control devices in your aquarium to ELIMINATES FATALITY and MAINTAIN a HEALTHY WATER SYSTEM!\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eInstantly display pH value and redox value (ORP) all at the same time on its LCD screen\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEquipped with 2 probes (pH and redox), and 2 power sockets.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSimultaneously control other pH \u0026amp; ORP related devices to regulate the pH and redox values in liquids\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eAccurately, easily and systematically MONITORS and CONTROLS pH and ORP values as well as the other pH and ORP related control devices all in one single unit\u003c\/li\u003e\n\u003cli\u003eFeatures fast response and easy to calibrate REPLACEABLE pH \u0026amp; ORP Electrodes, no need to buy and replace the whole unit\u003c\/li\u003e\n\u003cli\u003eAPPROVED BY STRICT QUALITY AND SAFETY STANDARDS ensures a reliability, stability, long and trouble-free life and can be transported easily\u003c\/li\u003e\n\u003cli\u003eUses the Protection Dead Band feature\u003c\/li\u003e\n\u003cli\u003eGives you an option to mount it on the wall or hang on the solution's container while using or installing the unit\u003c\/li\u003e\n\u003cli\u003eAvailable in\u003cstrong\u003e 110V and 220V\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDisplay: double 4 LED, DUAL display reading\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConformity: CE and RoHS\u003c\/li\u003e\n\u003cli\u003eMeasuring range\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003ePH: 0.00 ~ 14.00pH\u003c\/li\u003e\n\u003cli\u003eORP: -1999 ~ 1999mV\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eAccuracy\n\u003cul\u003e\n\u003cli\u003ePH: ±0.1%+0.02PH\u003c\/li\u003e\n\u003cli\u003eORP: ±5mV\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eResolution\n\u003cul\u003e\n\u003cli\u003ePH: 0.01pH\u003c\/li\u003e\n\u003cli\u003eORP: 1mV\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSet Range\n\u003cul\u003e\n\u003cli\u003ePH: 3.50 ~ 10.50pH\u003c\/li\u003e\n\u003cli\u003eORP: -500 ~ 500mV\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eRelay Contact: 5A for AC 110V or 220V\u003c\/li\u003e\n\u003cli\u003eEnvironment\n\u003cul\u003e\n\u003cli\u003eOperation Temperature :  0 to 50 °C  (32  to 122 °F)\u003c\/li\u003e\n\u003cli\u003eAmbient Humidity :  90 or less than  90 % R. H.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003ePower Requirement :  AC110V ±10% 60Hz \/ AC220V ±10% 50Hz\u003c\/li\u003e\n\u003cli\u003ePower Consumption :  2 Watts\u003c\/li\u003e\n\u003cli\u003eVoltage:   \u003cstrong\u003e110V \u003c\/strong\u003e\u003cstrong\u003eor 220V\u003c\/strong\u003e \u003c\/li\u003e\n\u003cli\u003eDimensions:  160 x 102 x 40mm\u003c\/li\u003e\n\u003cli\u003eWeight:  872g\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSet Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Dual Aquarium Controller for pH \u0026amp; ORP\u003c\/li\u003e\n\u003cli\u003e1 x 4.003 + 1 x 6.864 + 1 x 9.182 calibration (buffer) solution\u003c\/li\u003e\n\u003cli\u003e1 x Detachable 300cm pH electrode\u003c\/li\u003e\n\u003cli\u003e1 x Detachable 300cm ORP electrode\u003c\/li\u003e\n\u003cli\u003e2 x Rubber cable holder with suction cap\u003c\/li\u003e\n\u003cli\u003e1 x Metal wall hanger\u003c\/li\u003e\n\u003cli\u003e1 x Mini-screwdriver\u003c\/li\u003e\n\u003cli\u003e1 x English Operation Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"K03","offers":[{"title":"EU","offer_id":12650003333175,"sku":"PH-803_EU","price":150.9,"currency_code":"USD","in_stock":true},{"title":"US","offer_id":12650025353271,"sku":"PH-80_US","price":150.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-803-eu-ph-803-digital-ph-orp-redox-2-in-1-controller-monitor-w-output-power-relay-control-electrode-probe-bnc-water-quality-meter-online-continu-563666.jpg?v=1732854231"},{"product_id":"868-1","title":"868-1 0.0-14.0 pH \u0026 Temperature Meter ATC Dual Display, Portable Digital Pen-Type Tester, IP67 Waterproof Dustproof, for Hydroponics Aquariums Drinking Water Quality Control Testing","description":"\u003cp\u003epH meter, also been called as Digital pH meter or pH Tester, it’s the device that does pH measurement for liquid, which had been widely used in the Water Quality Testing applications.\u003c\/p\u003e\n\u003cp\u003eBest for Pools, Aquariums, Labs, Aquaculture, Car washes, Water testing and Wastewater treatment.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClear dual display, Temperature \u0026amp; pH\u003c\/li\u003e\n\u003cli\u003eAuto buffer recognition for error-free calibration\u003c\/li\u003e\n\u003cli\u003eMeasuring stability indicator\u003c\/li\u003e\n\u003cli\u003e1-Touch auto-calibration up to 3 points\u003c\/li\u003e\n\u003cli\u003eAdjustable calibration values\u003c\/li\u003e\n\u003cli\u003eComes with sensor cover to keep the sensor moist and last lifetime\u003c\/li\u003e\n\u003cli\u003eCan measure alkaline solution\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eAuto power off\u003c\/li\u003e\n\u003cli\u003eAuto temperature compensation\u003c\/li\u003e\n\u003cli\u003e°C\/°F selectable\u003c\/li\u003e\n\u003cli\u003eLow battery indicator\u003c\/li\u003e\n\u003cli\u003eHold function\u003c\/li\u003e\n\u003cli\u003eIP67 waterproof \u0026amp; dustproof, totally protected against dust \u0026amp; water even on immersion up to 1m \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range : 0.0~14.0pH\u003c\/li\u003e\n\u003cli\u003eAccuracy : ±0.2pH\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eResolution : 0.1pH\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eCalibration Point : 4, 7, 10 (adjustable value)\u003c\/li\u003e\n\u003cli\u003eTemperature Accuracy : ±1°C\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature Resolution : 0.5°C\/°F\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature compensation : 0~50°C\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperating Environment: 0°C~50°C (32°F~122°F)  ; 0~80%RH\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimension : 150 x 36 x 25mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSet Includes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Waterproof pH meter\u003c\/li\u003e\n\u003cli\u003e3 x Buffer Powder Solutions: pH4.01, pH7.00, \u0026amp; pH10.01\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e4 x Button Battery\u003c\/li\u003e\n\u003cli\u003eEnglish User Manual\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eProtective Packaging Box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"A01","offers":[{"title":"Default Title","offer_id":39674295910455,"sku":"868-1","price":22.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/868-1-0-14-ph-temperature-meter-atc-dual-display-portable-digital-pen-type-tester-ip67-waterproof-dustproof-for-hydroponics-aquariums-drinking-water-quality-313.jpg?v=1754986191"},{"product_id":"868-6","title":"868-5 Waterproof pH meter with Temperature + Auto Calibration","description":"\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/v5apss8W6cg\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWaterproof Housing meets IP65 rating !\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic Calibration with just a push of a button\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy 3 points Calibration ( 4, 7, 10)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCan measure alkaline solution\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDisplay Temperature \u0026amp; pH simultaneously\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy to switch between °C and °F\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eData Hold \u0026amp; ATC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAuto Power off that can be disable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePen size, easy to fit in pocket\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLow battery indicator\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh quality and accurate testing results are guaranteed\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eApproved by strict quality and safety standards\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWide range of application: Pools, Aquariums, Labs, Aquaculture, Car washes, Water testing and Waste water treatment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTotally Brand New\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan color=\"#993300\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003eSpecifications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eIP Grade: IP65 \u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eMeasuring Range: 0~14pH\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eAccuracy : ±0.2pH\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eResolution : 0.1pH\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eCalibration Point: 4, 7, 10\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eTemperature Accuracy: ±1°C\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eTemperature Resolution: 0.5°C\/°F\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eAutomatic Temperature Compensation : 0~50°C\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cspan color=\"#333333\"\u003eOperating Condition\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eOperating Temperature: 0°C~50°C (32°F~122°F)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eOperating Humidity: 0~80%RH\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eSelf Calibration\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eStorage Temperature: 0~50°C\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan color=\"#333333\"\u003eDimension: 165 x 35 x 32mm (L x W x H)\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSet includes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x  Waterproof pH Meter \u003c\/li\u003e\n\u003cli\u003e4 x 1.5V batteries\u003c\/li\u003e\n\u003cli\u003e3 x pH Powder ( \u003cspan\u003epH4.01, pH7.00 \u0026amp; pH10.01\u003c\/span\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"A01","offers":[{"title":"Default Title","offer_id":32500967178295,"sku":"868-5","price":44.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-868-5-868-5-waterproof-ph-meter-with-temperature-auto-calibration-721218.jpg?v=1732853909"},{"product_id":"phs-3385","title":"PHS-3385 Waterproof  pH Meter 2.1 - 10.8pH Dipstick","description":"\u003cp\u003e Designed to immerse in water or liquid solution to test and monitor the pH level with instant response. Featuring \"One-Touch Calibration System\" and has Automatic Temperature Compensation (ATC). It has rubber gaskets (O-ring) that sealed tight to prevent water or liquid leak inside.\u003c\/p\u003e\n\u003cp\u003eCalibrate this pH stick in a quick and simple way. It also has a glass probe that combines high sensitivity and good usage repetition (can it be use for many times) even on field measuring\u003c\/p\u003e\n\u003cp\u003eThis brings you the most convenience way to read the pH level in a large tank, pond and pool.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e100 % Fully Waterproof\u003c\/li\u003e\n\u003cli\u003eAuto Power On \/ Off when the meter senses solution\u003c\/li\u003e\n\u003cli\u003eBuilt in ATC\u003c\/li\u003e\n\u003cli\u003eOne-Touch Calibration System\u003c\/li\u003e\n\u003cli\u003eLow battery indication\u003c\/li\u003e\n\u003cli\u003eInstantaneous response with high accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range: 2.1~10.8pH\u003c\/li\u003e\n\u003cli\u003eResolution: 0.1pH\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.1pH\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 5~50°C (41~122°F)\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC): 5~50°C (41~122°F)\u003c\/li\u003e\n\u003cli\u003ePower supply: 3 x 1.5 V AA Batteries (included)\u003c\/li\u003e\n\u003cli\u003eCalibration: Automatic, 2 point\u003c\/li\u003e\n\u003cli\u003eSize: approx. 415 x 23 x 23mm\u003c\/li\u003e\n\u003cli\u003eWeight: approx. 191g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSet Includes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x pH stick\u003c\/li\u003e\n\u003cli\u003e3 x 1.5V AA Batteries\u003c\/li\u003e\n\u003cli\u003e1 x Instruction Manual\u003c\/li\u003e\n\u003cli\u003eStandard factory package  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":31677482401847,"sku":"PHS-3385","price":35.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-phs-3385-phs-3385-waterproof-ph-meter-21-108ph-dipstick-919803.jpg?v=1732854121"},{"product_id":"pht-027","title":"PHT-027 7-in-1 Meter Tester ORP , PH, CF, EC, TDS (PPM) °F °C","description":"\u003cp\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eThis meter\u003c\/span\u003e\u003c\/span\u003e has been re-engineered to bring you the most advanced and most functional water tester in the market today, it has a BUILT-IN RECHARGEABLE BATTERY with USB TYPE charger to save you from the hassle of buying, placing \u0026amp; replacing button batteries. All Electrodes \u0026amp; fixed probe are pre-calibrated \u0026amp; fully temperature compensation, all you have to do is just charge the Built-in Rechargeable Battery and you're ready to measure! Included PH electrode is BNC type and can be easily replaced anytime without buying the whole set!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003eThis all in one meter can measure not just six parameter but \u003cspan\u003e7 parameters\u003c\/span\u003e this includes, \u003c\/span\u003e\u003cspan\u003eORP(MV)\u003c\/span\u003e, \u003cspan\u003epH,\u003c\/span\u003e \u003cspan\u003eCF\u003c\/span\u003e, \u003cspan\u003eEC,\u003c\/span\u003e \u003cspan\u003eTDS(PPM)\u003c\/span\u003e \u003cspan\u003e°F \u003cspan\u003eand\u003c\/span\u003e °C\u003c\/span\u003e\u003cspan\u003e. The Multi-parameter Water Quality Monitor is a versatile, high-accuracy multi-parameter instrument with reliable multi probe system and with all the functionality of a multi-parameter system. It can provide simultaneous measurements results.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003eIt so easy to use and indeed an affordable one, which made it possible for non-technical and technical personnel alike to measure dissolved solids, pH, ORP, conductivity and temperature on the spot, accurately and inexpensively throughout a variety of applications. No more switching meters to measure the pH, \u003c\/span\u003e\u003cspan\u003e°\u003c\/span\u003e\u003cspan\u003eC or \u003c\/span\u003e\u003cspan\u003e°\u003c\/span\u003e\u003cspan\u003eF and then the EC, CF or TDS of a solution.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eHigh acidity or alkalinity can cause direct physical damage to skin, gills eyes and reproductive cycle of fish. Prolonged exposure to unwanted excess substances can cause stress with sometimes-fatal consequences. Changes in either acidity or alkalinity can exert a powerful influence over both water quality and water chemistry, and will have a marked effect on the fish health and filter activity.\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eThe fast, efficient, accurate and portable, more precise measurement meets the requirements of your routine multi-measurements. This multi-functional meter comes supplied with FREE pH6.864 and pH4.003 CALIBRATION SOLUTIONS and USB TYPE BATTERY CHARGER, pre-calibrated replaceable pH electrode, pre-calibrated probe, calibration trimmer (mini-screw driver) and comprehensive manual. \u003c\/span\u003e\u003cspan\u003e\u003cspan\u003ePlus you get a FREE Replaceable Factory Calibrated ORP electrode!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cstrong\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003e\u003cbr\u003eFeatures\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e7 different parameters: pH, Temperature (°F \u0026amp; °C), ORP(mV), TDS (EC, CF, ppm) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt-in Rechargeable Battery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLarge, Tri-Screen LCD Display; 3 results displayed simultaneously\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh pH accuracy up to ±0.1pH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eElectrodes \u0026amp; Probe: \u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003epre-calibrated (factory calibrated)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eplastic-coated for enhanced protection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003edetachable BNC composite\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eInstantaneous reading results\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOption for mounting or hanging\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eQuick and easy Installation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy calibration of pH and TDS with just a mini-screw driver (detailed procedure is in manual)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReliable and stable and transportable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe operation is simple and comfortable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eMeasuring Range\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEC : 0 ~ 19.99EC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCF : 0 ~ 199.9CF\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTDS : 10 ~ 19990ppm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePH : 0 ~ 14.00PH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003emV: 0 ~ ±1999mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e°C : -50 ~ 70°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e°F : -58 ~ 158°F\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eResolution\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eEC : 0.01EC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCF : 0.1CF\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTDS : 10ppm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePH : 0.01PH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003emV : 1mV\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e°C : 0.1°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e°F : 0.2°F\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eAccuracy\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePH : ±0.1PH\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e°C : ±1.0°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003emV : ±0.1%F.S±1digit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEC, CF, TDS : ±2% F.S\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOperating Temperature : 0 ~ 50°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic Temperature Compensation(ATC) : 0 ~ 50°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePre-Calibrated Electrodes \u0026amp; Probe\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt-in Battery Pack with USB Type Battery Charger\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSize : 155 x 86 x 22mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight : approx. 230g\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e \u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eSet Includes \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e1 x All-in-On\u003c\/span\u003e\u003cspan\u003ee Multi-Function water quality meter\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x pH Electrode BNC Type (Enhanced Plastic Protection)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x ORP Electrode BNC Type (Enhanced Plastic Protection)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x TDS Electrode (Connected with main unit)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Rechargeable Battery (installed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 set of pH4.003 and pH 6.864 Calibration Solutions (FREE) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x USB Type Battery Charger Adaptor(US, UK, EU or AU)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Mini-Screw Driver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e 1 x Metal Hanging Hook\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x User's Manual \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":39252573519927,"sku":"PHT-027","price":98.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-pht-027-pht-027-7-in-1-meter-tester-orp-ph-cf-ec-tds-ppm-0f-0c-591706.jpg?v=1732854125"},{"product_id":"sns-8689","title":"SNS-8689 Optional Replaceable Electrode with Cap for pH Temperature Pen Meter (868-9)","description":"\u003cp\u003eModel:  \u003cstrong\u003eSNS-8689\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAn Replaceable electrode with cap filled with solution to keep the electrode moist used for Waterproof Detachable pH Temperature Pen Meter Auto Calibration (\u003ca href=\"http:\/\/www.gainexpress.com\/products\/868-9-waterproof-digital-ph-meter-tester-thermometer-c-f\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e868-9\u003c\/a\u003e)\u003c\/p\u003e","brand":"A01","offers":[{"title":"Default Title","offer_id":606243473,"sku":"SNS-8689","price":32.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-sns-8689-sns-8689-optional-replaceable-electrode-with-cap-for-ph-temperature-pen-meter-868-9-764383.jpg?v=1735489727"},{"product_id":"sns-orp99720","title":"SNS-ORP99720 optional ORP electrode for M0199720","description":"\u003cp\u003eModel:\u003cstrong\u003e SNS-ORP99720\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eHere's an optional ORP electrode use for 6-in-1 Pentype Water Quality tester (\u003ca href=\"https:\/\/www.gainexpress.com\/products\/m0199720?_pos=2\u0026amp;_sid=6f7837b1d\u0026amp;_ss=r\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eM0199720\u003c\/a\u003e).\u003c\/p\u003e","brand":"M01","offers":[{"title":"Default Title","offer_id":606243513,"sku":"SNS-ORP99720","price":52.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-sns-orp99720-sns-orp99720-optional-orp-electrode-for-m0199720-298019.jpg?v=1735489744"},{"product_id":"tds-139","title":"TDS-139 Digital Pen Type TDS \/ Conductivity \/ Hydroponics Meter 0-1999 PPm","description":"\u003cp\u003e\u003cspan\u003eMeasures water purity, conductivity and determine the quality of the water used. It measures the amount of Total Dissolved Solids (TDS) in a solution. Total Dissolved Solids (TDS) are the total weight of all solids or an expression of mobile charged ions (such as minerals, salts, metals, cations and anions) that are dissolved in a given volume of water. Unit is expressed in milligrams per liter (mg\/L) or in parts per million (ppm) like for instance, a milligram or 1mg of solids dissolved in 1L of water is equal to 1ppm TDS.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIncorrect TDS levels in fish water might result to an improper drinking cycle and may experience dehydration or fluid loss via gills. TDS meter has a wide range of applications including Aquarium water and Aquatic cultivation, Hydroponics, Hardness of water, Water Systems, Pools and Spas, Production, Pure drinking water, Food processing, Hospitals and Medical products, Boiler water, Households and offices, Electroplating water, Cooling towers, Laboratories, Ionized water and water quality testing etc.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cul\u003e\n\u003cli\u003eHandy and compact design\u003c\/li\u003e\n\u003cli\u003eEasy to use and provides a quick measurement\u003c\/li\u003e\n\u003cli\u003eHigh ±2% Full Scale accuracy\u003c\/li\u003e\n\u003cli\u003eWide range water quality testing applications\u003cbr\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMeasuring range : 0-1999 ppm (mg\/L)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eResolution: 1 ppm (mg\/L)\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±2% F.S.\u003c\/li\u003e\n\u003cli\u003eEnvironment: Humidity: ≤95%\u003c\/li\u003e\n\u003cli\u003eLCD Display: 4-digits\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0 - 50°C (32 - 122 °F)\u003c\/li\u003e\n\u003cli\u003ePower: 2 x 3V Button (CR2032) Cell Batteries (included)\u003c\/li\u003e\n\u003cli\u003eDimension: approx. 150 x 27 x 20mm (5.90 x 1.06 x 0.79 inch)\u003c\/li\u003e\n\u003cli\u003eWeight: 46g\u003cbr\u003e\u003cbr\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSet Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x TDS meter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e1 x Mini Screwdriver\u003c\/li\u003e\n\u003cli\u003e1 x Instruction Manual\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStandard Factory Package\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":606244193,"sku":"TDS-139","price":19.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-tds-139-tds-139-digital-pen-type-tds-conductivity-hydroponics-meter-0-1999-ppm-202310.jpg?v=1735489869"},{"product_id":"tds-1392","title":"TDS-1392 0~1999 PPm (mg\/L) Range Digital TDS Meter + Monitor + Power Adaptor","description":"\u003cp\u003eThe NEW METER is a less expensive, slick and stylish handy meter that comes with a large and easy to read display system. A cable from meter to sensor and an easy operation-switch-button are provided for easy installation and usage. A mini-screw driver (trimmer) is supplied for easy calibration of the Digital TDS Meter plus it comes with plug adapters that works in Europe, UK and USA so you can just plug your power charger straight into the wall. Also included are four (4) FREE 1.5V batteries for less hanging wires in you aquarium area.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYou can rely on its 100% accurate and stable reading. Most aquarists use Digital TDS Meter to monitor aquatic water for dissolved solids and impurities. The Digital TDS Meter is not just for aquarium it can also be used in swimming pool, spa, laboratories and hospitals.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDetermining dissolved solids and impurities has never been this easy!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cbr\u003e\n\u003cp align=\"left\"\u003e\u003cstrong\u003eFeature:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eUser-friendly and easy to install with its step-by-step operating information\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHas a 4-digital LCD for ease of reading\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFour (4) 1.5V batteries are provided for a clean and wireless environment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAn adaptor for UK or US or Europe system is provided if you want to save your batteries for later use\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA mini-screw driver is also provided to fine-tune the reading to standard calibration\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eMeasuring range : \u003c\/span\u003e\u003cspan\u003e0~1999 PPm (mg\/L) \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eResolution : 1PPm \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFull Scale Accuracy : ±2% \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFactory Calibrated\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e0°C - 50°C Temperature with Automatic Temperature Compensation (ATC)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4 x 1.5V Batteries and power adaptor (for UK or US or Europe)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDimensions : 60mm×55mm×23mm \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCalibration solutions: 1382ppm (not included)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 60g\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSet Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x TDS Meter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4 x 1.5V Batteries\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePower adaptor (for UK or US or Europe)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Mini-Screw Driver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Protective Cap for electrode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eWhite gift box\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":606244201,"sku":"TDS-1392","price":37.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-tds-1392-tds-1392-01999-ppm-mgl-range-digital-tds-meter-monitor-power-adaptor-234125.jpg?v=1735489857"},{"product_id":"th-9806","title":"TH-9806 2-in-1 Aquarium Thermometer for Tanks \u0026 Rooms","description":"\u003ch2 class=\"ui-box-title\"\u003e\u003c\/h2\u003e\n\u003cdiv class=\"ui-box-body\"\u003e\n\u003cp\u003eModel: \u003cstrong\u003eTH-9806\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eA Digital LCD thermometer is primarily intended for use with an aquarium, but it also doubles up as a room thermometer to adequately control the temperature in both ways. A sliding switch, at the bottom right-hand side, seAquarium Thermometerslects either the water temperature or the room temperature. This Digital Thermometer have accurate measurement of aquarium water or room temperature in °C. It has an operational range of between -50°C to +70°C to help you maintain the right or appropriate temperature that provides a healthier environment. Ideal for use with aquariums, but also as a room thermometer and slide switch selects room or aquarium temperature.\u003cbr\u003e\u003cbr\u003eA good thermometer to see what the temperature really is. Have 2 types of thermometer in just one device.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eFeatures :\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDisplays an accurate temperature of the water inside your tank\u003c\/li\u003e\n\u003cli\u003eUnit of temperature is in DEGREE CELSIUS (°C)\u003c\/li\u003e\n\u003cli\u003eUser-friendly and easy to install with its step-by-step operating information\u003c\/li\u003e\n\u003cli\u003eHas a digital LCD for ease of reading\u003c\/li\u003e\n\u003cli\u003eA piece of 1.5V (AG13) battery is provided for a clean and wireless environment\u003c\/li\u003e\n\u003cli\u003eA comprehensive user's manual is provided to best utilized the TH-9806\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring range : -50°C ~ 70°C\u003c\/li\u003e\n\u003cli\u003eResolution : 0.1°C\u003c\/li\u003e\n\u003cli\u003eAccuracy : ±1°C\u003c\/li\u003e\n\u003cli\u003ePower Supply : 1.5V(AG13) x 1\u003c\/li\u003e\n\u003cli\u003eDimensions : 60mm × 55mm × 23mm\u003c\/li\u003e\n\u003cli\u003eWeight : 43g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan\u003eSet Includes\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Digital Water and indoor Thermometer\u003c\/li\u003e\n\u003cli\u003eUser's Manual\u003c\/li\u003e\n\u003cli\u003eA piece of 1.5V (AG13) Battery \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":606244341,"sku":"TH-9806","price":19.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-th-9806-th-9806-2-in-1-aquarium-thermometer-for-tanks-rooms-969629.jpg?v=1735489814"},{"product_id":"cond-21","title":"Cond-21 Waterproof Professional Digital 19990us\/cm ATC Conductivity Meter EC Tester Taiwan Made","description":"\u003cp\u003eModel : \u003cstrong\u003eCond-21\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis Professional quality EC meters are reliable, pocket-sized instruments that will give you quick, highly accurate and stable EC readings of conductivity. It has been redesigned for increased strength, to better fit your hand and also offer a much larger LCD for easier viewing. Easy to calibrate and has given an IP57 waterproof rating -- splash proof keypad. The Electrode can be replaced easily without buying the whole meter. Conductivity of a solution is highly temperature dependent. Automatic Temperature Compensation (ATC) assures that all readings are corrected to compensate for the effect of temperature. An LCD displays the digits clearly so they can be read at virtually any angle. \u003cstrong\u003eAll parts are made and manufactured in Taiwan.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIt also has a new feature wherein the mini-screwdriver can be stored inside the meter. Plus, the meter is housed with an impact resistant ABS body casing. Such a great device for hydroponics, aquaculture, irrigation system and freshwater systems to monitor the amount of nutrients, salts or impurities in the water.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eMeasure and Monitor Conviniently, Efficiently and Accurately!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFeatures: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eProfessional Quality Meter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e1-point manual calibration with mini-screwdriver\u003c\/li\u003e\n\u003cli\u003eWaterproof housing (IP-57 rating), protects meter from wet environment and dust\u003c\/li\u003e\n\u003cli\u003eElectrode is user replaceable\u003c\/li\u003e\n\u003cli\u003eSensor provide better repeatability and faster response time\u003c\/li\u003e\n\u003cli\u003eLarge LCD display and temperature compensation as standard\u003c\/li\u003e\n\u003cli\u003eEasy 2 simple step calibration procedure, just soak and twist the knob\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMade in Taiwan\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eWith CE Marking, approved by Europen Directives for health \u0026amp; safety\u003c\/li\u003e\n\u003cli\u003eImpact resistant ABS case; durable and reliable\u003c\/li\u003e\n\u003cli\u003eHighly accurate reading results\u003c\/li\u003e\n\u003cli\u003eFactory Calibrated: Meters can be recalibrated with a mini-screwdriver\u003c\/li\u003e\n\u003cli\u003eInside meter storage for mini-screwdriver\u003c\/li\u003e\n\u003cli\u003eFeels great in your hand\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range : 0~19990 µS\/cm\u003c\/li\u003e\n\u003cli\u003eAccuracy : ±1%FS\u003c\/li\u003e\n\u003cli\u003eResolution : 10 µS\/cm\u003c\/li\u003e\n\u003cli\u003eWith ATC (Automatic Temperature Compensation)\u003c\/li\u003e\n\u003cli\u003ePower: 3V x 2 Lithium battery CR2032\u003c\/li\u003e\n\u003cli\u003eDimension : 33.5 x 170mm\u003c\/li\u003e\n\u003cli\u003eWeight : 85g (including battery)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSet Includes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Conductivity Meter EC Tester\u003c\/li\u003e\n\u003cli\u003e1 x FREE 1413 µS\/cm calibration solution\u003c\/li\u003e\n\u003cli\u003e2 x 3V  CR2032 Battery\u003c\/li\u003e\n\u003cli\u003e1 x English Instruction Manual\u003c\/li\u003e\n\u003cli\u003ePackaging box\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"M01","offers":[{"title":"Default Title","offer_id":655591653,"sku":"Cond-21","price":34.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-cond-21-cond-21-waterproof-professional-digital-19990uscm-atc-conductivity-meter-ec-tester-taiwan-made-923546.jpg?v=1732853912"},{"product_id":"m0199720","title":"M0199720 6-in-1 Water Tester Combo Pen pH, ORP, EC, TDS, Salinity, \u0026 Temperature","description":"\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/VRh9K-PEAZk\" height=\"315\" width=\"560\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\n\u003cp\u003e\u003cbr\u003eThis 6-in-1 Multi Parameter pentype water quality tester, can measure pH, Conductivity, ORP ,Temperature (°C\/°F), TDS and Salinity in one meter. It does not require a power supply to operate, so it can be used anytime and anywhere. Measured value is accurately shown in the large, easy to read and clear LCD.\u003c\/p\u003e\n\u003cp\u003eIt has wide range of application, an ideal tool for all water quality testing like Agriculture, Anti-freeze Recycling, Aquarium, Boiler, Chemical Industry, Cooling tower, Drinking Water, Fish Farming, Food industry, Garden husbandry, Hydroponic, Laboratory usage, Plating industry, Swimming pool \u0026amp; Spa, Water Treatment, etc.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSmart pen type combo water quality tester with 6 parameter measurement\u003c\/li\u003e\n\u003cli\u003eWide pH range : -2~16pH\u003c\/li\u003e\n\u003cli\u003eWide Temp. range :0 ~ 90°C\u003c\/li\u003e\n\u003cli\u003eWide conductivity range : 0~2000\u003cspan\u003eμ\u003c\/span\u003es \/ 2.00~20.00mS\u003c\/li\u003e\n\u003cli\u003eWide TDS range : 0~1300ppm \/ 1.30~13.00ppt\u003c\/li\u003e\n\u003cli\u003eWide ORP range : -1000~1000mV\u003c\/li\u003e\n\u003cli\u003eWide Salinity range : 0~1000ppm \/ 1.00~12.00ppt\u003c\/li\u003e\n\u003cli\u003eMultiple pH calibration : 4.0 \/ 7.0 \/ 10.01\u003c\/li\u003e\n\u003cli\u003eMultiple Conductivity Calibration : 0\u003cspan\u003eμ\u003c\/span\u003es \/ 1413\u003cspan\u003eμ\u003c\/span\u003eS \/ 12.88mS\u003c\/li\u003e\n\u003cli\u003eWith 0~90°C ATC for pH \u003c\/li\u003e\n\u003cli\u003eWith 0~50°C ATC for EC \/ Conductivity\u003c\/li\u003e\n\u003cli\u003eMicroprocessor based for fast and accurate display\u003c\/li\u003e\n\u003cli\u003eNew rugged \u0026amp; ergonomic design powered by 4 x 1.5V AAA batteries\u003c\/li\u003e\n\u003cli\u003eDigital calibration by one button\u003c\/li\u003e\n\u003cli\u003eIt floats on water\u003c\/li\u003e\n\u003cli\u003eCompact \u0026amp; handy, easy to carry anywhere\u003c\/li\u003e\n\u003cli\u003eTemp reading is always display to pH  or ORP or Conductivity or TDS or Salinity\u003c\/li\u003e\n\u003cli\u003eCompact housing IP57 waterproof standard and rugged design\u003c\/li\u003e\n\u003cli\u003eLarge LCD (2.5 x 2 cm)\u003c\/li\u003e\n\u003cli\u003eDisplay Temperature simultaneously with pH or Conductivity or TDS or Salinity\u003c\/li\u003e\n\u003cli\u003eWith Automatic Temperature Compensation\u003c\/li\u003e\n\u003cli\u003eDisplay Maximum\/Minimum value and data HOLD\u003c\/li\u003e\n\u003cli\u003eSelectable temperature unit °C\/°F\u003c\/li\u003e\n\u003cli\u003eBattery Low indication\u003c\/li\u003e\n\u003cli\u003eAuto power off\u003c\/li\u003e\n\u003cli\u003eEasy to replace Conductivity electrode \u003cem\u003e(include)\u003c\/em\u003e, pH electrode \u003cem\u003e(included) \u003c\/em\u003eand ORP electrode \u003cem\u003e(not included in the set)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eAutomatically identify the parameters during replacement of electrode\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMade in Taiwan\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e Parameter : pH, ORP, Conductivity, Temperature, TDS,  \u0026amp; Salinity in one pen\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable border=\"1\" width=\"605\" height=\"224\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 72.7083px;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"width: 94.9306px;\"\u003epH\u003c\/td\u003e\n\u003ctd style=\"width: 84.9306px;\"\u003eTemperature\u003c\/td\u003e\n\u003ctd style=\"width: 56.0417px;\"\u003eORP \u003c\/td\u003e\n\u003ctd style=\"width: 102.708px;\"\u003eConductivity\u003c\/td\u003e\n\u003ctd style=\"width: 97.1528px;\"\u003eTDS\u003c\/td\u003e\n\u003ctd style=\"width: 97.1528px;\"\u003eSalt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 72.7083px;\"\u003eRange\u003c\/td\u003e\n\u003ctd style=\"width: 94.9306px;\"\u003e-2~16.00pH \u003c\/td\u003e\n\u003ctd style=\"width: 84.9306px;\"\u003e0~90°C\u003c\/td\u003e\n\u003ctd style=\"width: 56.0417px;\"\u003e-1000 ~ 1000mV\u003c\/td\u003e\n\u003ctd style=\"width: 102.708px;\"\u003e\n\u003cp\u003e0~2000μS,\u003cbr\u003e2.00~20.00mS \u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 97.1528px;\"\u003e\n\u003cp\u003e0~1300ppm\u003cbr\u003e1.30~13.00ppt\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 97.1528px;\"\u003e\n\u003cp\u003e0~1000ppm,\u003cbr\u003e1.00~12.00ppt\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 72.7083px;\"\u003eAccuracy\u003c\/td\u003e\n\u003ctd style=\"width: 94.9306px;\"\u003e±0.01pH+1dgt\u003c\/td\u003e\n\u003ctd style=\"width: 84.9306px;\"\u003e±0.2°C+1dg\u003c\/td\u003e\n\u003ctd style=\"width: 56.0417px;\"\u003e±2 + 1dgt\u003c\/td\u003e\n\u003ctd colspan=\"3\" style=\"width: 307.153px;\"\u003e±2%FS (Cond. TDS Salt)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 72.7083px;\"\u003eResolution\u003c\/td\u003e\n\u003ctd style=\"width: 94.9306px;\"\u003e 0.01pH\u003c\/td\u003e\n\u003ctd style=\"width: 84.9306px;\"\u003e0.1°C \u003c\/td\u003e\n\u003ctd style=\"width: 56.0417px;\"\u003e1mV\u003c\/td\u003e\n\u003ctd style=\"width: 102.708px;\"\u003e  1μS\/ 0.01mS\u003c\/td\u003e\n\u003ctd style=\"width: 97.1528px;\"\u003e  1ppm\/ 0.01ppt \u003c\/td\u003e\n\u003ctd style=\"width: 97.1528px;\"\u003e  1ppm\/ 0.01ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 72.7083px;\"\u003eATC\u003c\/td\u003e\n\u003ctd style=\"width: 94.9306px;\"\u003e  0~90°C \u003c\/td\u003e\n\u003ctd style=\"width: 84.9306px;\"\u003e \u003c\/td\u003e\n\u003ctd style=\"width: 56.0417px;\"\u003e \u003c\/td\u003e\n\u003ctd style=\"width: 102.708px;\"\u003e   0~50°C\u003c\/td\u003e\n\u003ctd style=\"width: 97.1528px;\"\u003e \u003c\/td\u003e\n\u003ctd style=\"width: 97.1528px;\"\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 72.7083px;\"\u003eCalibration\u003c\/td\u003e\n\u003ctd colspan=\"3\" style=\"width: 246.042px;\"\u003epH: 4.00\/ 7.00\/ 10.01    \u003c\/td\u003e\n\u003ctd colspan=\"3\" style=\"width: 307.153px;\"\u003eCond: 0μS\/ 1413μS\/ 12.88mS    \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003eOperating temperature : 0~60°C\u003c\/li\u003e\n\u003cli\u003eStorage temperature : 0~60°C\u003c\/li\u003e\n\u003cli\u003eButtons : Three Keys\u003c\/li\u003e\n\u003cli\u003ePower :  4 x AAA size batteries \u003c\/li\u003e\n\u003cli\u003eWeight :  135 g (battery included)\u003c\/li\u003e\n\u003cli\u003eDimension :  195 x 40 x 36mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSet includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 6-in-1 Combo Pen Meter\u003c\/li\u003e\n\u003cli\u003e4 x 1.5V AAA Batteries installed\u003c\/li\u003e\n\u003cli\u003e1 x pH electrode\u003c\/li\u003e\n\u003cli\u003e1 x Conductivity Electrode\u003c\/li\u003e\n\u003cli\u003e1 x Soaking solution\u003c\/li\u003e\n\u003cli\u003e2 x Bottles of pH Calibration Solution (pH4.0 \u0026amp; pH7.0)\u003c\/li\u003e\n\u003cli\u003e1 x Bottle of Conductivity Calibration Solution (1413uS\/cm)\u003c\/li\u003e\n\u003cli\u003e2 x extra screw\u003c\/li\u003e\n\u003cli\u003e1 x Allen wrench\u003c\/li\u003e\n\u003cli\u003e1 x Wrist Strap\u003c\/li\u003e\n\u003cli\u003eEnglish User Manual\u003c\/li\u003e\n\u003cli\u003eHard Carrying Case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eOptional Item \u003c\/strong\u003e\u003cem\u003e(not included in set)\u003c\/em\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e      \u003cstrong\u003e    Please click here to buy this optional item\u003c\/strong\u003e \u003ca href=\"http:\/\/www.gainexpress.com\/products\/optional-orp-electrode-for-m0199720\" target=\"_blank\"\u003e\u003cstrong\u003eORP Electrode\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cem\u003eor you may contact us at sales(at)gainexpress.com if you want an optional items to be included in your order\u003c\/em\u003e\u003c\/div\u003e","brand":"M01","offers":[{"title":"Default Title","offer_id":32505822150711,"sku":"M0199720","price":136.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-m0199720-m0199720-6-in-1-water-tester-combo-pen-ph-orp-ec-tds-salinity-temperature-143838.jpg?v=1732854229"},{"product_id":"ph-025temp","title":"PH-025TEMP Digital pH Monitor Tester Meter Thermometer Aquarium","description":"\u003cp\u003eHas built-in ATC to make sure that even the slightest change in temperature WILL NOT affect the accuracy of reading results. This user friendly water quality monitor can be used in Aquariums, Swimming Pools, Spa \u0026amp; Hydroponics purposes etc. to measure \u0026amp; monitor pH and Temperature accurately.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarge \u0026amp; clear LCD with 4-digit display\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eIntended for continuous monitoring of pH \u0026amp; water temperature\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e1 meter (3.28 ft) reliable and stable cable from meter to sensor\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003eEasy to use with high accuracy\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003ePre-calibrated at factory\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003cstrong\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cspan\u003e Measuring Range :\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e0 ~ 14.00 pH\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e0 ~ 55°C (32 ~ 131°F)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cspan\u003eResolution:\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003epH: 0.01 pH\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e0.1°C\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cspan\u003eAccuracy:\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003epH: ±0.1 pH\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e±1 °C\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003eAutomatic Temperature Compensation (ATC) : 0 ~ 50°C (32 ~122°F)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003eOperating Temperature : 0~50°C (32 ~ 122°F)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003eDimension : approx. 60 x 55 x 23mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003eWeight : approx. 100g\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003eBatteries : 4 x 1.5V AG13 Button Battery (included)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003e        \u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eSet Includes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e1 x ph \u0026amp; Temperature monitor\u003c\/li\u003e\n\u003cli\u003e1 x Mounting Bracket with self-adhesive Velcro tape (FREE)\u003c\/li\u003e\n\u003cli\u003e1 x Protective cap for electrode\u003c\/li\u003e\n\u003cli\u003e1 x pH 4.003 Calibration Solution (FREE)\u003c\/li\u003e\n\u003cli\u003e1 x pH 6.864 Calibration Solution (FREE)\u003c\/li\u003e\n\u003cli\u003e1 x Mini Screwdriver\u003c\/li\u003e\n\u003cli\u003e1 x English Instruction Manual\u003c\/li\u003e\n\u003cli\u003eStandard factory package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":689137025,"sku":"PH-025TEMP","price":38.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ph-025temp-ph-025temp-digital-ph-monitor-tester-meter-thermometer-aquarium-244885.jpg?v=1732854117"},{"product_id":"ec-1382","title":"EC-1382 Digital EC Conductivity Meter Tester Water 0~1999 us\/cm with ATC \u0026 Electrode","description":"\u003cp\u003eThis accurate and reliable device EC-1382 is designed to stay consistent and has the same functionality as that of our \u003ca href=\"http:\/\/www.gainexpress.com\/products\/ec-1383-pen-type-ec-hydroponics-nutrient-meter-0-19-99ms-cm\" target=\"_blank\"\u003eEC-1383\u003c\/a\u003e, the only difference is that it reads in \"mS\/cm\"). The resulting read-out is directly from its meter head and displayed through the 4-digits LCD. EC-1385 is fully temperature compensated, conductivity of a solution is highly temperature dependent, therefore it is important to either use a temperature compensated instrument. It is compact and pocket-sized, helps to take up less space and provides easier portability. The meter is \u003cstrong\u003efactory calibrated\u003c\/strong\u003e and is ready for use anytime.\u003c\/p\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003eElectrical conductivity is always associated with purity and quality of water. Electrical conductivity or EC is one of the commonly used parameters for the relative purity of water. Conductivity is expressed in microSiemens per centimeter (µS\/cm) and is used as to measure the quality of raw or primary grade water. With this EC meter you can examine the quality of the pure water from your osmosis device or full demineralizer or the quality of your aquarium water as well as monitor the amount of nutrients, salts or impurities in the water.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eApplications \u0026amp; Usage:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003ePerfect for both consumer or commercial use such as in water systems, aquaculture, drinking water production, monitoring the cleanliness of swimming pool \u0026amp; spa, nutrient, hydroponics, household, office, aquariums, teaching material for physics and chemistry lessons, galvanic shop, ionized water and laboratory. The values are well readable with the large clear display. \u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFeatures\u003c\/strong\u003e: This device is very effective, reliable, easy and safe to use.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eWith Automatic Temperature Compensation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eEquipped with Electrode for extreme durability and excellent conductivity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eEasy to use and provides a quick measurement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eHigh accuracy of ±2% full scale\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eWith CE Approval and ideal for the most demanding of users\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eWide range of applications in water quality testing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eCompact and light weight for mobility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eWith accurate and clear display for ease of use\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eEasy push power button and calibration with the mini-screw driver\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eComes supplied with mini-screw driver and instruction manual to best utilize EC-1382\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eMeasuring range: 0~1999µs\/cm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eResolution: 1µs\/cm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eAccuracy: ±2%F·S\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eDisplay: 4-digital LCD\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eProbes: Electrodes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eAutomatic Temperature Compensation: 0-50°C (32~122°F)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eEnvironment: Humidity: ≤95%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eFactory Pre-Calibrated\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003ePower Supply: 2 x 3V (CR2032 Battery, included)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eDimensions: 150mm x 27mm x 20mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px; line-height: 1.5;\"\u003eWeight: 46g\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSet Includes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1 x Digital EC Conductivity Meter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2 x CR-2032 (3V) Button Battery included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Plastic Case\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Trimmer (screwdriver)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x User Manual\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"K03","offers":[{"title":"Default Title","offer_id":870832905,"sku":"EC-1382","price":24.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-ec-1382-ec-1382-digital-ec-conductivity-meter-tester-water-01999-uscm-with-atc-electrode-302404.jpg?v=1732853787"},{"product_id":"orp-001","title":"ORP-001 Pen-type ORP Temperature Meter Redox Thermometer (°C\/ °F) -1999mV~1999mV Pool Aquarium","description":"\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/J7-fh8wJ5yI\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e2-in-1 ORP \u0026amp; Temperature meter\u003c\/strong\u003e offer high reliability and accuracy that can measure the amount of Oxidation Reduction Potential (ORP) \u0026amp; Temperature level.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eORP or Oxidation Reduction Potentials commonly used in measurement of Water Disinfection and is correlated with the quality and purity of water. This meter allows calibration and offers highly reliable measurements and has a wide range of applications in Aquarium, Hydroponics, Spas, Swimming pools and other water systems.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2-in-1 ORP \u0026amp; Temperature (°C\/ °F)\u003c\/li\u003e\n\u003cli\u003eCompact and portable pen-type design\u003c\/li\u003e\n\u003cli\u003eIt can show temperature display both °C and °F\u003c\/li\u003e\n\u003cli\u003eEasy to use and provides instant display of results\u003c\/li\u003e\n\u003cli\u003eIP65 Waterproof Level (splash-proof and dust-proof)\u003c\/li\u003e\n\u003cli\u003eLarge and Clear LCD with back-light functions\u003c\/li\u003e\n\u003cli\u003eFactory Calibrated\u003c\/li\u003e\n\u003cli\u003eHold Function\u003c\/li\u003e\n\u003cli\u003eReplaceable Electrode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRange\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003emV : 0~±1999mV\u003c\/li\u003e\n\u003cli\u003eTemperature : -50 ~ 70°C (-58 ~ 158°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eResolution\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003emV : 1mV\u003c\/li\u003e\n\u003cli\u003eTemperature : 0.1°C (0.2°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eAccuracy\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003emV : ±5mV\u003c\/li\u003e\n\u003cli\u003eTemperature : ±1°C(±2°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eOperating Temperature : 0°C~50°C\u003c\/li\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cli\u003eProtection Level : IP65\u003c\/li\u003e\n\u003cli\u003eBattery: 4 x 1.5V (AG-13) batteries (\u003cstrong\u003eincluded and installed in the main unit\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003eDimensions: 188mm x 35mm x 35mm\u003c\/li\u003e\n\u003cli\u003eWeight : 80g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSet Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x ORP Tester\u003c\/li\u003e\n\u003cli\u003e1 x Mini-Screw Diver\u003c\/li\u003e\n\u003cli\u003e4 x 1.5V (AG-13) batteries (installed in the main unit)\u003c\/li\u003e\n\u003cli\u003e1 x English Manual\u003c\/li\u003e\n\u003cli\u003eStandard Factory Packaging\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"H02","offers":[{"title":"Default Title","offer_id":1041576693,"sku":"ORP-001","price":33.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-orp-001-orp-001-pen-type-orp-temperature-meter-redox-thermometer-0c-0f-1999mv1999mv-pool-aquarium-340046.jpg?v=1732854238"},{"product_id":"orp8552","title":"ORP8552 ORP Meter Pen Type Redox 999mV Waterproof IP65 Digital Water Treatment Tester","description":"\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/ILXBtYkp3HM\" height=\"315\" width=\"560\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\n\u003cp\u003e\u003cbr\u003eThis \u003cstrong\u003eORP meter\u003c\/strong\u003e is a pen-type device to measure the amount of Oxidation Reduction Potential (ORP) level in a sample quickly and conveniently.\u003c\/p\u003e\n\u003cp\u003eORP is correlated with the quality and purity of water. ORP meter has a wide range of applications, it is excellent to use in \u003cstrong\u003ewaste water treatment\u003c\/strong\u003e, \u003cstrong\u003ewater disinfection process\u003c\/strong\u003e and \u003cstrong\u003elaboratory experiments\u003c\/strong\u003e.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eIP65 Waterproof housing\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eBig display for easy reading\u003c\/li\u003e\n\u003cli\u003eEasy to use and provides instant display of results\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eData hold to freeze readings\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePen size\u003c\/strong\u003e in professional shape, easy to fit in pocket\u003c\/li\u003e\n\u003cli\u003e20 mins auto power off\u003c\/li\u003e\n\u003cli\u003eLow battery indicator\u003c\/li\u003e\n\u003cli\u003eCap to keep sensor wet\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFactory Calibrated\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePower by 4pcs LR44 batteries\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasuring Range : -999mV ~ +999mV\u003c\/li\u003e\n\u003cli\u003eAccuracy : ±4mV\u003c\/li\u003e\n\u003cli\u003eResolution : 1mV\u003c\/li\u003e\n\u003cli\u003eProtection Level : IP65\u003c\/li\u003e\n\u003cli\u003eAuto Power Off\u003c\/li\u003e\n\u003cli\u003eHold Data Functions\u003c\/li\u003e\n\u003cli\u003eTemperature\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Temp : 0°~60°C (32~140°F)\u003c\/li\u003e\n\u003cli\u003eStorage Temp : -10~60°C (14~140°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eHumidity\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Humidity : \u0026lt;80%RH\u003c\/li\u003e\n\u003cli\u003eStorage Humidity : \u0026lt;90%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eBattery Life : \u0026gt;20hrs continuous use\u003c\/li\u003e\n\u003cli\u003eBattery: 4 x LR44 buttons batteries (\u003cem\u003e\u003cstrong\u003eincluded and installed in the main unit\u003c\/strong\u003e\u003c\/em\u003e)\u003c\/li\u003e\n\u003cli\u003eSize : 165mm(L) x 35mm(W) x 32mm(H)\u003c\/li\u003e\n\u003cli\u003eWeight : 115g\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eSet Includes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Digital ORP Tester\u003c\/li\u003e\n\u003cli\u003e4 x LR44 Buttons Battery (\u003cstrong\u003einstalled in the main unit\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003e1 x English Operation Manual\u003c\/li\u003e\n\u003cli\u003eStandard Factory Packaging\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"A01","offers":[{"title":"Default Title","offer_id":1046851257,"sku":"ORP8552","price":67.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-orp8552-orp8552-orp-meter-pen-type-redox-999mv-waterproof-ip65-digital-water-treatment-tester-520397.jpg?v=1735489624"},{"product_id":"ph-001","title":"PH-001 Pen-type PH Meter Digital Water Quality Tester, 0~14pH for Hydroponics Aquarium Pool Wine Cola Urine Water Tank with Clear LCD with Backlight Function, Portable Pocket Size","description":"Portable handy pH Meter measures the acidity and alkalinity of a substance from \u003cstrong\u003e0~14pH\u003c\/strong\u003e .\n\u003cp\u003e\u003cbr\u003eIt is applicable for biological sample analysis in hydroponics, aquaculture and agriculture. A very wise choice to test your swimming pool, measurement in laboratory or food analysis.\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cbr\u003eFeatures:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eData hold function\u003c\/li\u003e\n\u003cli\u003eWith Temperature Compensation\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eProtective cap helps reduce contamination\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstant display of measured value\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear LCD with \u003c\/strong\u003e\u003cstrong\u003eback-light\u003c\/strong\u003e function\u003c\/li\u003e\n\u003cli\u003e2 points manual calibration\u003c\/li\u003e\n\u003cli\u003eCompact pen size and lightweight for mobility\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eCE RoHS Marking\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRange:\u003cstrong\u003e 0.00~14.00pH \u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eResolution: 0.01pH\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±0.05pH\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eTemperature Compensation\u003cstrong\u003e: 0~50°C\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0~50°C\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eCalibration: 2 points manual calibration by mini screwdriver\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimension: 157 x 27 x 8mm\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 42g\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eBattery: 2 x 3V (CR1632)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSet Includes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Digital pH Meter\u003c\/li\u003e\n\u003cli\u003e2 x 3V CR2032 Battery (Installed)\u003c\/li\u003e\n\u003cli\u003e1 x Mini screwdriver \/ trimmer\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e2 x Calibration Powder (pH 4.01 and pH6.86)\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e1 x Plastic Case\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eEnglish Instruction Manual\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eStandard Factory Package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"H02","offers":[{"title":"Default Title","offer_id":32504571789367,"sku":"PH-001","price":25.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/products\/1-gain-express-gainexpress-pH-meter-PH-001-preview_407.jpg?v=1565085350"},{"product_id":"orp-002","title":"ORP-002 Pen-type Redox Meter Digital LCD Pool Aquarium ORP Water Quality Tester with Backlight","description":"\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMinimum Order Quantity (MOQ) : 5 pieces\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cstrong\u003eFor inquiries and orders, e-mail us at sales@gainexpress.com or message us via our chatbot\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003eThis handy ORP tester measure the amount of Oxidation Reduction Potential (mV) from -1999~1999mV. It has clear LCD with back light function for convenient operation even in dark areas.\u003cbr\u003e\u003cbr\u003eThis device is commonly used in measurement of Water Disinfection, the stronger the ORP, the faster the microbe is killed. Oxidation Reduction Potential (ORP) was found to be a reliable indicator of bacteriological water quality.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIt has protective cap that helps reduce contamination\u003c\/li\u003e\n\u003cli\u003eClear LCD with backlight function\u003c\/li\u003e\n\u003cli\u003eProvides instant display of measured value\u003c\/li\u003e\n\u003cli\u003eCompact pensize and light weight for mobility\u003c\/li\u003e\n\u003cli\u003eWith CE RoHS Marking, passed \u0026amp; comply with all the necessary health and safety required standards set by the European Directives\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRange: -1999~1999mV\u003c\/li\u003e\n\u003cli\u003eResolution: 1mV\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±5mV\u003c\/li\u003e\n\u003cli\u003eLCD Display : 4 Digits\u003c\/li\u003e\n\u003cli\u003eBattery: 4 x 1.5V (AG-13)\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0~50°C\u003c\/li\u003e\n\u003cli\u003eCalibration : manual by mini screwdriver (included)\u003c\/li\u003e\n\u003cli\u003eItem Color: Red\u003c\/li\u003e\n\u003cli\u003eDimension: 151 x 33 x 20mm\u003c\/li\u003e\n\u003cli\u003eWeight: 53g\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSet Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Digital Pen-type ORP Meter\u003c\/li\u003e\n\u003cli\u003e4 x 1.5V (AG-13) Battery (Installed)\u003c\/li\u003e\n\u003cli\u003e1 x Mini screwdriver \/ trimmer\u003c\/li\u003e\n\u003cli\u003e1 x Plastic Case\u003c\/li\u003e\n\u003cli\u003eEnglish Instruction Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: #ffffff;\"\u003eopr 002\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"H02","offers":[{"title":"Default Title","offer_id":32505951158327,"sku":"ORP-002","price":33.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/files\/gain-express-orp-002-orp-002-pen-type-redox-meter-digital-lcd-pool-aquarium-orp-water-quality-tester-with-backlight-499054.jpg?v=1735489646"},{"product_id":"phm-003","title":"PHM-003 2-in-1 pH TDS Water Quality Tester Replaceable pH Electrode Aquarium Pool Hydroponic Tool","description":"\u003cp\u003eThis \u003cstrong\u003e2-in 1 Combo pH \u0026amp; TDS mini tester\u003c\/strong\u003e helps you monitor and measure the pH level and the Total Dissolved Solids (TDS) of a solution. It is more convenient to use with its \u003cstrong\u003ebig LCD display\u003c\/strong\u003e and the pH and TDS electrode are separated, making the measurement more accurate.\u003c\/p\u003e\n\u003cp\u003eSince pH value varies with temperature, this pH monitor is equipped with Automatic Temperature Compensation (ATC), so temperature change can't hardly effect on pH level. pH value will be automatically adjusted in temperature between 0 ~ 50 °C.\u003c\/p\u003e\n\u003cp\u003eBoth pH and TDS are important parameter to keep track the pollution level in water. Thus this meter is a very useful tool for environmental monitoring, laboratories, hydroponics, aquariums, swimming pools, spas and food processing etc\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable BNC pH sensor probe\u003c\/strong\u003e with protective cap\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSeparate pH and TDS electrode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eMini tester with large and clear LCD display\u003c\/li\u003e\n\u003cli\u003eWith \u003cstrong\u003ebacklight\u003c\/strong\u003e function\u003c\/li\u003e\n\u003cli\u003ePowered by 4 x LR44 batteries or 6V power adapter [choose one from the available \u003cstrong\u003e110V (US System)\u003c\/strong\u003e or \u003cstrong\u003e220V (EUR System)\u003c\/strong\u003e]\u003cbr\u003e \u003cem\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003eNote:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e Power adaptor is recommended when performing continuous or round-the-clock monitoring.\u003c\/li\u003e\n\u003cli\u003eBuilt with Automatic Temperature Compensation (ATC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 points manual \u003c\/strong\u003e\u003cb\u003ecalibration\u003c\/b\u003e [pH4.01 and pH6.86 (\u003cem\u003e\u003cstrong\u003eincluded in the set\u003c\/strong\u003e\u003c\/em\u003e) or pH9.18 (\u003cem\u003e\u003cstrong\u003enot included in the set\u003c\/strong\u003e\u003c\/em\u003e)]\u003c\/li\u003e\n\u003cli\u003eWith \u003cstrong\u003eCE RoHS\u003c\/strong\u003e Marking, passed \u0026amp; comply with all the necessary health and safety required standards set by the European Directives making this meter an \u003cstrong\u003eenvironment-friendly\u003c\/strong\u003e tool for your water quality testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRange\n\u003cul\u003e\n\u003cli\u003epH: 0.00~14.00pH\u003c\/li\u003e\n\u003cli\u003eTDS: 0.00~19.99ppt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eResolution\n\u003cul\u003e\n\u003cli\u003epH: 0.01pH\u003c\/li\u003e\n\u003cli\u003eTDS: 0.01ppt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eAccuracy\n\u003cul\u003e\n\u003cli\u003epH: ±0.1pH\u003c\/li\u003e\n\u003cli\u003eTDS: ±2%FS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003ePower Supply: DC 6V (Usable Power adapter) or 4 x LR44 battery (included in the set)\u003c\/li\u003e\n\u003cli\u003eTemperature Compensation: 0~50°C\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: 0~50°C\u003c\/li\u003e\n\u003cli\u003eCalibration: 2 point manual calibration by mini screwdriver\u003c\/li\u003e\n\u003cli\u003eDimension: 75 x 55 x 28mm\u003c\/li\u003e\n\u003cli\u003eWeight: 60g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eSet includes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Digital pH \/ TDS Meter\u003c\/li\u003e\n\u003cli\u003e1 x BNC pH Probe with Protective Cap\u003c\/li\u003e\n\u003cli\u003e1 x DC 6V Adapter (choose one from the available \u003cstrong\u003e110V (US System) \u003c\/strong\u003e or \u003cstrong\u003e220V (EUR System)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e4 x LR44 Battery (\u003cstrong\u003einstalled\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003e2 x Calibration Powder (pH 4.01 and pH6.86)\u003c\/li\u003e\n\u003cli\u003e1 x Mini screwdriver \/ trimmer\u003c\/li\u003e\n\u003cli\u003e1 x Clip\u003c\/li\u003e\n\u003cli\u003eEnglish Instruction Manual\u003c\/li\u003e\n\u003cli\u003eStandard Factory Package \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"color: #ff0000;\" color=\"#FF0000\"\u003e\u003cb\u003eNOTE: Power plugs are available for US and Euro System Only\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"H02","offers":[{"title":"Default Title","offer_id":32506128564279,"sku":"PHM-003","price":53.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/products\/gain_express_gainexpress_PH_TDS_meter_PH-M003_preview_707.jpg?v=1565085468"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0393\/5153\/collections\/water-quality-products-248872.jpg?v=1732611749","url":"https:\/\/www.gainexpress.com\/collections\/water-quality-products\/orp-tester-monitor.oembed?page=2","provider":"Gain Express","version":"1.0","type":"link"}