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WQM-560 Floating Water Quality Tester 9-in-1 pH ORP Chlorine EC CF TDS Salt S.G. Temp, Smart Tuya App Compatible with iOS & Android, 24/7 Auto Water Monitoring for Aquariums, Pools, Hot Tubs, Spas & Hydroponics

WQM-560 Floating Water Quality Tester 9-in-1 pH ORP Chlorine EC CF TDS Salt S.G. Temp Smart Tuya App Compatible with WQM-560 Floating Water Quality Tester 9-in-1 pH ORP Chlorine EC CF TDS Salt S.G. Temp Smart Tuya App Compatible with

WQM-560 Floating Water Quality Tester 9-in-1 pH ORP Chlorine EC CF TDS Salt S.G. Temp, Smart Tuya App Compatible with iOS & Android, 24/7 Auto Water Monitoring for Aquariums, Pools, Hot Tubs, Spas & Hydroponics

$79.90 USD

WQM-553 8-in-1 Wifi Tuya Smart Swimming Pool Water Monitor for pH / Temperature / TDS / Electrical Conductivity / Salinity / Chlorine / Specific Gravity / ORP for Pool, Spa, Tubs

WQM-553 8-in-1 Wifi Tuya Smart Swimming Pool Water Monitor for pH / Temperature / TDS / Electrical Conductivity WQM-553 8-in-1 Wifi Tuya Smart Swimming Pool Water Monitor for pH / Temperature / TDS / Electrical Conductivity

WQM-553 8-in-1 Wifi Tuya Smart Swimming Pool Water Monitor for pH / Temperature / TDS / Electrical Conductivity / Salinity / Chlorine / Specific Gravity / ORP for Pool, Spa, Tubs

$134.90 USD

WQM-546 Multi-Parameter Water Quality Tester – UV Absorbance for COD / TOC / UV275, EC / TDS / Salinity / GH / S.G. / Temp, Intelligent 4-Color Score, Auto Temp Compensation – for Tap, Purified, Ground, Seawater & Aquaculture

WQM-546 Multi-Parameter Water Quality Tester – UV Absorbance for COD/TOC/UV275 EC/TDS/Salinity/GH/S.G./Temp Intelligent WQM-546 Multi-Parameter Water Quality Tester – UV Absorbance for COD/TOC/UV275 EC/TDS/Salinity/GH/S.G./Temp Intelligent

WQM-546 Multi-Parameter Water Quality Tester – UV Absorbance for COD / TOC / UV275, EC / TDS / Salinity / GH / S.G. / Temp, Intelligent 4-Color Score, Auto Temp Compensation – for Tap, Purified, Ground, Seawater & Aquaculture

$63.90 USD

SAL-543 Salinity and Temperature Meter Digital Salinometer 0–199.9 ppt ATC with LCD Backlight, High Precision 2-in-1 Pen Tester for Aquarium, Fish Pond, Marine Tank, and Swimming Pool

SAL-543 Salinity and Temperature Meter Digital Salinometer 0–199.9 ppt ATC with LCD Backlight High Precision 2-in-1 Pen SAL-543 Salinity and Temperature Meter Digital Salinometer 0–199.9 ppt ATC with LCD Backlight High Precision 2-in-1 Pen

SAL-543 Salinity and Temperature Meter Digital Salinometer 0–199.9 ppt ATC with LCD Backlight, High Precision 2-in-1 Pen Tester for Aquarium, Fish Pond, Marine Tank, and Swimming Pool

$29.90 USD

WQM-525 WiFi Smart pH Meter 8-in-1, Multi-Parameter Water Quality Tester for pH / TDS / EC / Salinity / ORP / Temp for Aquarium, Hydroponics, Pool

WQM-525 WiFi Smart pH Meter 8-in-1 Multi-Parameter Water Quality Tester for pH/TDS/EC/Salinity/ORP/Temp for Aquarium WQM-525 WiFi Smart pH Meter 8-in-1 Multi-Parameter Water Quality Tester for pH/TDS/EC/Salinity/ORP/Temp for Aquarium

WQM-525 WiFi Smart pH Meter 8-in-1, Multi-Parameter Water Quality Tester for pH / TDS / EC / Salinity / ORP / Temp for Aquarium, Hydroponics, Pool

$128.90 USD

WQM-527 Smart WIFI Water Quality Monitor Multi-Parameter Aquarium Monitor pH, Temperature, TDS, EC (Conductivity), Salinity, S.G, and ORP for Hydroponics, Aquarium, Fish Tank, Aquaculture

WQM 527 Smart WIFI Water Quality Monitor Multi Parameter Aquarium Monitor pH Temperature TDS EC (Conductivity) Salinity WQM 527 Smart WIFI Water Quality Monitor Multi Parameter Aquarium Monitor pH Temperature TDS EC (Conductivity) Salinity

WQM-527 Smart WIFI Water Quality Monitor Multi-Parameter Aquarium Monitor pH, Temperature, TDS, EC (Conductivity), Salinity, S.G, and ORP for Hydroponics, Aquarium, Fish Tank, Aquaculture

$82.90 USD

WQM-526 Digital Water Testing Kit for Hot Tub, Pools & Spas Water Tester Measures pH, Free Chlorine, Total Alkalinity, Bromine, Cyanuric Acid, Total Chlorine, Total Hardness with Water Analyzer and Test Strips

WQM-526 Digital Water Testing Kit for Hot Tub Pools & Spas Water Tester Measures pH Free Chlorine Total Alkalinity WQM-526 Digital Water Testing Kit for Hot Tub Pools & Spas Water Tester Measures pH Free Chlorine Total Alkalinity

WQM-526 Digital Water Testing Kit for Hot Tub, Pools & Spas Water Tester Measures pH, Free Chlorine, Total Alkalinity, Bromine, Cyanuric Acid, Total Chlorine, Total Hardness with Water Analyzer and Test Strips

$196.90 USD

WQM-504 Smart Aquarium Water Quality Monitor – 7-in-1 Real-Time Water Tester for pH, Temperature, TDS, EC, Salinity, Specific Gravity & ORP – WiFi Connected with Mobile Alerts

WQM-504 Smart Aquarium Water Quality Monitor – 7-in-1 Real-Time Water Tester for pH, Temperature, TDS, EC, Salinity, Specific Gravity & ORP – WiFi Connected with Mobile Alerts WQM-504 Smart Aquarium Water Quality Monitor – 7-in-1 Real-Time Water Tester for pH, Temperature, TDS, EC, Salinity, Specific Gravity & ORP – WiFi Connected with Mobile Alerts

WQM-504 Smart Aquarium Water Quality Monitor – 7-in-1 Real-Time Water Tester for pH, Temperature, TDS, EC, Salinity, Specific Gravity & ORP – WiFi Connected with Mobile Alerts

$109.90 USD

PHC-493 PH / EC /Temp Meter Smart Acidity & Conductivity Range Controller Monitoring and Dosing in Water pH Meter Conductivity Temp Tester App Remote Online Monitor for Swimming Pool Aquaculture Fishpond

PHC-493 PH / EC /Temp Meter Smart Acidity & Conductivity Range Controller Monitoring and Dosing in Water pH Meter PHC-493 PH / EC /Temp Meter Smart Acidity & Conductivity Range Controller Monitoring and Dosing in Water pH Meter

PHC-493 PH / EC /Temp Meter Smart Acidity & Conductivity Range Controller Monitoring and Dosing in Water pH Meter Conductivity Temp Tester App Remote Online Monitor for Swimming Pool Aquaculture Fishpond

WQM-453 Water Quality Conductivity Indicator 7 LED Conductivity Level Measure 0~90us/cm with ATC and IP68 for Water Filter Monitoring, Environmental Checking etc.

WQM - 453 Water Quality Conductivity Indicator 7 LED Conductivity Level Measure 0~90us/cm with ATC and IP68 for Water Filter Monitoring, Environmental Checking etc. - Gain Express WQM - 453 Water Quality Conductivity Indicator 7 LED Conductivity Level Measure 0~90us/cm with ATC and IP68 for Water Filter Monitoring, Environmental Checking etc. - Gain Express

WQM-453 Water Quality Conductivity Indicator 7 LED Conductivity Level Measure 0~90us/cm with ATC and IP68 for Water Filter Monitoring, Environmental Checking etc.

WQM-448 Digital 3-in-1 pH | EC | Temperature Tester Waterproof IP65 for pH/EC Measurement in Water, Meats and Soft Solid Food Samples with ATC, Portable High-Accuracy

WQM - 448 Digital 3 - in - 1 pH | EC | Temperature Tester Waterproof IP65 for pH/EC Measurement in Water, Meats and Soft Solid Food Samples with ATC, Portable High - Accuracy - Gain Express WQM - 448 Digital 3 - in - 1 pH | EC | Temperature Tester Waterproof IP65 for pH/EC Measurement in Water, Meats and Soft Solid Food Samples with ATC, Portable High - Accuracy - Gain Express

WQM-448 Digital 3-in-1 pH | EC | Temperature Tester Waterproof IP65 for pH/EC Measurement in Water, Meats and Soft Solid Food Samples with ATC, Portable High-Accuracy

$57.90 USD

PHM-443 Digital Pentype pH Meter High Accuracy Colored Screen | Red Backlight Alarm | 3-Point Calibration with Temperature Measurement ATC Function for Liquids in Laboratory Food and Medicine Industry

PHM - 443 PHM - 443 Digital Pentype pH Meter High Accuracy Colored Screen | Red Backlight Alarm | 3 - Point Calibration with Temperature Measurement ATC Function for Liquids in Laboratory Food and Medicine Industry - Gain Express PHM - 443 PHM - 443 Digital Pentype pH Meter High Accuracy Colored Screen | Red Backlight Alarm | 3 - Point Calibration with Temperature Measurement ATC Function for Liquids in Laboratory Food and Medicine Industry - Gain Express
-20%

PHM-443 Digital Pentype pH Meter High Accuracy Colored Screen | Red Backlight Alarm | 3-Point Calibration with Temperature Measurement ATC Function for Liquids in Laboratory Food and Medicine Industry

$41.52 USD
$51.90 USD

WQM-408 6in1 Water Quality Testing Meter TOC UV275 EC TDS COD Temp Tester, Intelligent Scoring Mode, Colored Backlight Indicator Digital Water Test Kit for Home Drinking Water, Tap Industrial Water etc.

WQM - 408 6in1 Water Quality Testing Meter TOC UV275 EC TDS COD Temp Tester, Intelligent Scoring Mode, Colored Backlight Indicator Digital Water Test Kit for Home Drinking Water, Tap Industrial Water etc. - Gain Express WQM - 408 6in1 Water Quality Testing Meter TOC UV275 EC TDS COD Temp Tester, Intelligent Scoring Mode, Colored Backlight Indicator Digital Water Test Kit for Home Drinking Water, Tap Industrial Water etc. - Gain Express

WQM-408 6in1 Water Quality Testing Meter TOC UV275 EC TDS COD Temp Tester, Intelligent Scoring Mode, Colored Backlight Indicator Digital Water Test Kit for Home Drinking Water, Tap Industrial Water etc.

$54.90 USD

PHC-402 Dual Relay Digital pH Controller with Temperature Compensation UP and DOWN Adjustable Dosing for Aquarium, Hydroponics System and Indoor Plant Grow

PHC-402 Dual Relay Digital pH Controller with Temperature Compensation UP and DOWN Adjustable Dosing for Aquarium, Hydroponics System and Indoor Plant Grow PHC-402 Dual Relay Digital pH Controller with Temperature Compensation UP and DOWN Adjustable Dosing for Aquarium, Hydroponics System and Indoor Plant Grow

PHC-402 Dual Relay Digital pH Controller with Temperature Compensation UP and DOWN Adjustable Dosing for Aquarium, Hydroponics System and Indoor Plant Grow

WQM-397 Smart 5-in-1 pH / TDS / Salt / S.G / Temperature WiFi Tester Water Quality for Drinking Supply Aquarium Hydroponics Pool Aquaculture

WQM - 397 Smart 5 - in - 1 pH / TDS / Salt / S.G / Temperature WiFi Tester Water Quality for Drinking Supply Aquarium Hydroponics Pool Aquaculture - Gain Express WQM - 397 Smart 5 - in - 1 pH / TDS / Salt / S.G / Temperature WiFi Tester Water Quality for Drinking Supply Aquarium Hydroponics Pool Aquaculture - Gain Express

WQM-397 Smart 5-in-1 pH / TDS / Salt / S.G / Temperature WiFi Tester Water Quality for Drinking Supply Aquarium Hydroponics Pool Aquaculture

$62.90 USD

DOM-383 Digital Rechargeable DO Meter Dissolved Oxygen Tester with Floating Probe Long Cable Electrode, ATC

DOM - 383 DOM - 383 Digital Rechargeable DO Meter Dissolved Oxygen Tester with Floating Probe Long Cable Electrode, ATC - Gain Express DOM - 383 DOM - 383 Digital Rechargeable DO Meter Dissolved Oxygen Tester with Floating Probe Long Cable Electrode, ATC - Gain Express

DOM-383 Digital Rechargeable DO Meter Dissolved Oxygen Tester with Floating Probe Long Cable Electrode, ATC

$141.90 USD

E-367 pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Controller Test Sensor, Replaceable for Aquarium Hydroponics Plant Pool Spa

E - 367 E - 367 pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Controller Test Sensor, Replaceable for Aquarium Hydroponics Plant Pool Spa - Gain Express E - 367 E - 367 pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Controller Test Sensor, Replaceable for Aquarium Hydroponics Plant Pool Spa - Gain Express

E-367 pH Electrode Probe BNC Connector 200cm Long Cable for PH Meter Monitor Controller Test Sensor, Replaceable for Aquarium Hydroponics Plant Pool Spa

$24.90 USD

WQM-359 Multi-Parameter 8-in-1 Water Test Kit pH. ORP. EC Conductivity, TDS, Salt, S.G., CF, and Temperature with Online APP Tester

WQM - 359 Multi - Parameter 8 - in - 1 Water Test Kit pH. ORP. EC Conductivity, TDS, Salt, S.G., CF, and Temperature with Online APP Tester - Gain Express WQM - 359 Multi - Parameter 8 - in - 1 Water Test Kit pH. ORP. EC Conductivity, TDS, Salt, S.G., CF, and Temperature with Online APP Tester - Gain Express

WQM-359 Multi-Parameter 8-in-1 Water Test Kit pH. ORP. EC Conductivity, TDS, Salt, S.G., CF, and Temperature with Online APP Tester

$94.90 USD

WQM-354 Water Quality Tester 4-in-1 TDS Temperature S.G Salt Salinity Meter with ATC for Testing Drinking Water, Aquaculture, Aquarium, Hydroponics, Swimming Pools

WQM - 354 Water Quality Tester 4 - in - 1 TDS Temperature S.G Salt Salinity Meter with ATC for Testing Drinking Water, Aquaculture, Aquarium, Hydroponics, Swimming Pools - Gain Express WQM - 354 Water Quality Tester 4 - in - 1 TDS Temperature S.G Salt Salinity Meter with ATC for Testing Drinking Water, Aquaculture, Aquarium, Hydroponics, Swimming Pools - Gain Express

WQM-354 Water Quality Tester 4-in-1 TDS Temperature S.G Salt Salinity Meter with ATC for Testing Drinking Water, Aquaculture, Aquarium, Hydroponics, Swimming Pools

WQM-369 Bluetooth 6 IN 1 Floating Monitor EC / Salinity / pH / ORP / Temperature / Chlorine Smart Meter Tester

WQM - 369 Bluetooth 6 IN 1 Floating Monitor EC / Salinity / pH / ORP / Temperature / Chlorine Smart Meter Tester - Gain Express WQM - 369 Bluetooth 6 IN 1 Floating Monitor EC / Salinity / pH / ORP / Temperature / Chlorine Smart Meter Tester - Gain Express

WQM-369 Bluetooth 6 IN 1 Floating Monitor EC / Salinity / pH / ORP / Temperature / Chlorine Smart Meter Tester

$67.90 USD
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