E-313 Accurate & Fast Combination pH Electrode w/ Long BNC Connector Cable & Calibration Powder, 0~14 pH Measurement Range for Sea Water and Acid Rain

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pH is an essential index in our everyday life. The pH value of solutions reflects the properties of liquid, including the biological utilization of nutrients and microbial activity. Therefore, pH has always been an important indicator to be tested and monitored in laboratory, aquaculture and F&B industry. 

Having a wide measurement range from 0 to 14pH, our E-313 combination pH electrode is now your best choice to detect the pH value of liquid samples. Constructed with a glass and reference electrode that ensures high accuracy and fast response, the pH electrode is also durable and stable thanks to the design of a Teflon junction ring. Its 1.5-meter-long BNC connector cable allows pH testing to be done conveniently. 

Its wide application includes but not limits to scientific experiments, clinical testing, food processing and water quality check in different bodies of water as well as fishing ponds and swimming pools.


  • Long Cable replacement pH electrode 
  • Able to check the pH level of sea water and acid rain
  • 50 Ohm BNC type connector
  • Glass bulb
  • With Teflon junction ring
  • Easy to calibrate using your pH measuring device
  • Easy monitoring of pH accurately
  • Comes with protective cap 


  • Measurement range: 0~14pH
  • Sensor type: general-purpose combination pH electrode
  • Dimensions: Φ12*160 mm
  • Construction material: polymer housing and glass bulb
  • Working temperature: 0~60°C (32~140°F)
  • Zero potential: 7.0 ± 0.25pH (under 25°C/ 77°F)
  • Percentage of slope: ≥ 97% (under 25°C/ 77°F)
  • Internal resistance: ≤ 250 MΩ (under 25°C/ 77°F)
  • Alkaline error: 0.2pH (under 25°C/ 77°F)
  • Response time: ≤ 1 min
  • Connection: 50 Ohm BNC with fixed cable
  • Cable length: 150 cm (59”)
  • Packaging: hard plastic box with sponge mold

Set Includes:

  • 1 x pH electrode
  • 1 x pH 4.00 calibration powder
  • 1 x pH 6.86 calibration powder
  • 1 x pH 9.18 calibration powder
  • User Manual in English
  • Protective Carrying Case

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