# PH Meter 0-14 probe with module

> Module with probe for measuring the pH of liquids between 0 and 14, compatible with Arduino and other development boards. Supply voltage 5V, current 5-10mA, analog signal output, response time 5S, calibration time 60S, detection temperature range 0-80 C. Module dimensions 42 x 32 x 20 mm. Suitable for pH monitoring of water in aquariums, hydroponics or IoT projects, calibration via potentiometer.

- Page: https://sigmanortec.ro/en/ph-meter-0-14-probe-with-module
- Price: 139.54 RON
- Availability: In stock; 1-2 zile
- Reference: 33095 · EAN: 5946141144904
- Category: Mechatronics and IoT > Sensors and Modules > Level and Liquid Sensors
- Package (shipping data): 0.023 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:50 (Europe/Bucharest)

## Description

Probe module for measuring the pH of liquids between 0 and 14, compatible with Arduino and other development boards, ideal for monitoring water in aquariums, hydroponics or IoT projects. It operates at 5V with low consumption 5-10mA, offers analog signal for easy reading, fast response in about 5s and simple calibration from the potentiometer, usable also at liquid temperatures up to 80C.
Ph meter compatible with Arduino and other development boards. It measures the PH of liquids with values between 0 and 14. Ideal in projects for monitoring the pH of water in aquariums and beyond.
Specifications:
Supply voltage: 5V
Supply current: 5 - 10mA
PH Range: PH 0-14
Detection temperature range: 0-80 ℃
Response time: 5S
Calibration time: 60S
Power: 0.5W
Operating temperature: -10 ~ 50 ℃ (nominal 20 ℃)
Operating humidity (module, not probe): 95% RH (nominal 65% RH)
Module dimensions mm: 42 x 32 x 20
Output: Analog signal
Use:
The module has two potentiometers, one for adjusting the digital output (I/O) and one for calibration (the one next to the probe's metal connector). The probe contains solution with PH 7 which is used as a reference value for calibration. Once the code is compiled and the analog value given on the "Po" pin is mapped, the calibration potentiometer will be activated until the PH value is equal to 7 (or with another value if another calibration solution is used).
Distilled water with a PH equal to 7 can be used if its exposure to air was of short duration.
To use, open the transparent cover on the probe and insert the probe into the liquid to be tested. Wait until you have a stable value on the analog output and that will be the PH of the tested solution.
After use, rinse the head of the probe with distilled water to remove the traces of the measured substances and reinsert the previously detached cap.
Make sure that the probe always has liquid for storage. Use only distilled water.
Instructions and code can be found here