Sensor Amplifier Board/Module for Testing pH Value (pH 0-14)

A sensor module for measuring the pH values of liquids with a microcontroller.

This module amplifies the values measured by a pH sensor (such as the OT3489 Electronic Probe - order separately). This makes it possible to read them with a microcontroller such as an Arduino or an ESP32.

Operating temperature: -10 ~ 50 (nominal temperature 20)
Operating humidity: 95% RH (nominal humidity 65% RH)
Size: 42 mm × 32 mm × 20 mm
Supply voltage: 5 ± 0.2V (AC DC)
Operating current: 5-10mA
Range: PH0-14
Response time: 5S
Stabilization time: 60S
Element power: 0.5W

• TO – Temperature Out
• DO – Digital Out Trigger (3.3V)
• PO – 0-5V Analog Out for PH
• GND – Ground
• VCC – 5VDC Input Power
• Dimensions: 42mm × 32mm × 20mm

Provides a 0-5V analog output – perfect for Arduino but also ESP32.

Great module for Biorobotics or other projects. For example, create your own IOT/Smart Home Water PH meter in combination with a wifi module. This way you can remotely measure the water quality in a small pool, rain barrel, water tank, pond, or aquarium.