DFRobot Gravity Lab Grade Analog pH Sensor/Meter Kit V2


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SKU: 1356253
  1. Brand: DFRobot
  2. Product: Gravity Lab Grade Analog pH Sensor/Meter Kit V2
  3. Supply Voltage: 3.3~5.5V
  4. Output Voltage: 0~3.0V
  5. Probe Connector: BNC
  6. Signal Connector: PH2.0-3P


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

DFRobot Gravity: Analog pH meter V2 is specifically designed to measure the pH of the solution and reflect the acidity or alkalinity. DFRobot ph sensor is commonly used in various applications such as aquaponics, aquaculture, and environmental water testing.
As an upgraded version of ph meter v1 , this product greatly improves the precision and user experience. The onboard voltage regulator chip supports the wide voltage supply of 3.3~5.5V, which is compatible with the 5V and 3.3V main control boards. The output signal filtered by hardware has low jitter. The software library adopts the two-point calibration method, and can automatically identify two standard buffer solutions (4.0 and 7.0), so simple and convenient. you may also check liquid sensor selection guide With this product, the main control board (such as Arduino, and the software library, you can quickly build the pH meter, plug, and play, with no welding.

Connection Diagram:

Useful Link:




  1. 3.3-5.5V wide voltage input
  2. Hardware filtered output signal, low jitter
  3. Gravity connector and BNC connector, plug and play, no welding
  4. The software library supports two-point calibration and automatically identifies standard buffer solution
  5. Uniform size and connector, convenient for the design of mechanical structures

Package Include:

1 x DFRobot Gravity Lab Grade Analog pH Sensor/Meter Kit V2

Supply Voltage


Output Voltage


Probe Connector


Signal Connector


Measurement Accuracy

±0.1 at 25℃

Probe Type

Laboratory Grade

Detection Range


Temperature Range


Zero Point


Response Time


Internal Resistance


Probe Life

>0.5 years (depending on the frequency of use)


42mm x 32mm/1.66 x 1.26in

Shipping Weight 0.34 kg
Shipping Dimensions 24 × 14 × 7 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Reimbursement or replacement will be done against manufacturing defects.

What voids the 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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Country Of Origin: China

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