PH Sensor
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PH Sensor

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Component Technical Specifications

This Liquid pH Sensor Module is a high-precision tool for measuring the acidity or alkalinity of aqueous solutions. It consists of a pH probe (BNC connector) and a signal conditioning circuit that converts the probe's micro-voltage into a readable analog signal for microcontrollers. With integrated temperature compensation and an adjustable digital trigger, it is ideal for hydroponics, aquaculture, environmental monitoring, and automated chemical dosing systems.

Sensor TypeGlass Electrode / Potentiometric.
Operating Voltage5.0V DC.
pH Measurement Range0.00 – 14.00 pH.
Temperature Range0°C – 60°C.
Accuracy± 0.1 pH (at 25°C).
Response Time≤ 1 min.
Output SignalDual Output.
Analog Output (Po)0V to 5V (linear voltage corresponding to pH level).
Digital Output (Do)High/Low trigger (adjustable via onboard potentiometer).
CalibrationOnboard offset potentiometer for zero-point calibration (pH 7.0).
Pin Configuration
VCC5V Power Supply.
GNDGround (Power).
GNDGround (Signal).
PoAnalog pH Signal.
DoDigital Trigger Signal.
ToTemperature Output (some versions include an integrated thermistor)

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