DFRobot Gravity: Analog pH Sensor Kit V2

SKU: KB2002
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DFRobot Gravity: Analog pH Sensor Kit V2 is specifically designed to measure the pH value of the solution and reflect the acidity or alkalinity. The onboard voltage regulator chip operates at a wide voltage supply of 3.3V to 5.5V, which is compatible with the 5V and 3.3V main control board. Features include hardware filtered output signal, low jitter, and uniform size and connector, convenient for the design of mechanical structures. This sensor’s pH includes various uses in chemistry, medicine, agriculture, aquaponics, aquaculture, and environmental water testing.


  • 3.3V~5.5V wide voltage input
  • Hardware filtered output signal and low jitter
  • Gravity connector and BNC connector, plug and play, no welding
  • Software library supports two-point calibration and automatically identifies standard buffer solution
  • Uniform size and connector
  • Convenient for the design of mechanical structures


  • Signal conversion board (transmitter) V2
    • 3.3V~5.5V supply voltage
    • 0V~3.0V output voltage
    • BNC probe connector
    • ±0.1 @ 25°C measurement accuracy
  • pH probe
    • 0~14 detection range
    • 5°C~60°C temperature range
    • 7±0.5 zero point
    • <250MΩ internal resistance

Additional information

Weight 500 g
Dimensions 30 × 10 × 5 cm



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