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pH Sensor E-201-C

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Product Description

INCLUDED: 1 x pH Sensor with BNC adapter for a microcontroller

This pH sensor module consists of a glass pH probe and a signal conditioning board, which gives an output signal proportional to the acidic intensity of liquid solutions and can be interfaced directly to any 5 V micro-controller.

This sensor returns a voltage proportional to the tendency of the solution to gain or lose electrons from other substances, which is linked directly to the pH a substance. And it's normally used in applications such as aquariums, hydroponics, laboratories, etc,  where it is normally used for measuring acidity on a scale from 0 to 14, with 0 being the most acidic and 14 being the most basic (see the image below).



With this module, you can add a second temperature sensor(not included) in order to measure the solution temperature and compensate the data as part of the measurement process, as it's shown below:







  • Working voltage: 5 Vdc
  • Working Current: 5-10 mA
  • Detection concentration range: pH 0-14
  • Detection range of temperature: 0-80℃
  • Response Time: ≤ 5 s
  • Stability Time: ≤ 60 s
  • Working Temperature: -10 to +50℃

Calibration table:

  pH     Output (V)  
4 3.071
7 2.535
10 2.066





pH values of known substances


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