
Buy this device together with the calibration solution for EC and Ph. With the pH calibration solution, I was able to bring the device closer to calibration. With EC calibration solutions, the devices were so far apart that they weren't even close together. There is an adjustment screw and it's easy to use, but couldn't get anywhere near matching numbers. The unit looks cheap and the line diodes had a bit of rust straight out of the box. It's very easy to tell that the instructions were loosely translated from Chinese. No sense of security from the start.

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

π― Honey Refractometer with Automatic Temperature Compensation (ATC) - Tiaoyeer Moisture, Brix, and Baume Refractometer for Honey, 58-90% Brix Scale Range - Honey Moisture Tester
31 Review

Accurate And Versatile Digital PH Meters For Food, Brewing, Hydroponics, Pools And More!
7 Review

Digital PH Meter Tester - Tiaoyeer Water Quality Tester With ATC, 0.01PH High Accuracy, 0.00-14.00 Measurement Range, 0.01 Resolution For Drinking Water, Aquarium, Swimming Pools, Hydroponic
8 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

π§ UEi Test Instruments DAFM3B Digital Multimeter
6 Review

π₯ Advanced Testo Wireless Hot Wire Anemometer Technology
4 Review

Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review