
This probe worked fine for a few weeks but then suddenly broke down. I've recalibrated it several times but it remains very inaccurate. A confirmed pH of 6.8 is 3.2, which is not even close. I would recommend paying a little more for a different sensor that will last longer.

Efficiently Test Your Antifreeze And Battery Acid With A 3-In-1 Refractometer
18 Review

TDS water quality tester - TDS water hardness meter (portable digital salt meter for water analysis)
9 Review

Portable digital multimeter with sound continuity and thermocouple (electric tester) LTX DT-838
7 Review

π PH 1-14 Extensive Storage Testing Monitoring: Optimize Your Storage with Precise pH Level Monitoring
6 Review

π Dioxide Controller for Digital Gas Monitoring
5 Review

π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review

π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review

π¬οΈ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review