DFRobot Gravity Analog pH Sensor for Arduino


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Approx Restocking Date: 25 to 30 Days
SKU: 1073423
  1. Module Power: 5.00V
  2. Module Size : 43 x 32mm(1.69×1.26″)
  3. Measuring Range :0 – 14PH
  4. Measuring Temperature: 0 – 60 ℃
  5. Accuracy : ± 0.1pH (25 ℃)


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Brand: DF Robot
Category: Water TDS, pH, Flow, Level and Pressure Sensor

Need to measure water quality and other parameters but haven’t got any low-cost pH meter? Find it difficult to use with Arduino? DFRobot analog pH meter, specially designed for Arduino controllers and has a convenient and practical “Gravity” connector and a bunch of features. Instant connection to your probe your Arduino to get pH measurements at ± 0.1pH (25 ℃). For most hobbyists, this great accuracy range and its low cost make this a great tool for biorobotics and other projects! It has an LED that works as the Power Indicator, a BNC connector, and a PH2.0 sensor interface. To use it, just connect the pH sensor with the BND connector, and plug the PH2.0 interface into the analog input port of any Arduino controller. If pre-programmed, you will get the pH value easily. Comes in a compact plastic box with foams for better mobile storage.

Build your own PH meter gadget or a water monitoring station for your water tanks. This and our other water sensor devices could make for the ultimate water control device. Use it for your aquaponics or fish tanks or other materials that need measurements.


  • Water quality testing
  • Aquaculture etc.
  • Power Indicator LED
  • pH Sensor with BNC Connector
  • Gain Adjustment Potentiometer
Input Voltage (V)



± 0.1pH

Response Time

≤ 1 min

Interface Type


Measuring Range

0 – 14PH

Operating Temperature (°C)

0 to 60

Length (mm):


Width (mm):


Weight (g):


Shipping Weight 0.1 kg
Shipping Dimensions 21.5 × 9 × 4 cm
1 Month Warranty

This item is covered with a standard warranty of 1 month from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Questions and answers of the customers

    what is the temperature Coefficient of the probe ?... Read more
  1. 0 votes
    Q what is the temperature Coefficient of the probe ? and can this probe be completely immersed in t...... Read more answer now
    Asked by ganesh.emaillog on April 7, 2024 10:02 pm

    Temperature coefficient of the probe is approxi... Read more

  2. What components are provided in this sensor? All t... Read more
  3. 0 votes
    Q What components are provided in this sensor? All those mentioned in the picture are provided? answer now
    Asked by kakarlamoni555 on February 4, 2022 3:40 pm

    Yes, the components which you can see in produc... Read more

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Country Of Origin: China

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