
I dipped it in my solution and he gave me the number. Then I "washed" the tip as instructed. As a result, liquid entered the device and it did not work. again. It's not waterproof. Apparently you need to use a small cup to "rinse" without letting the water rise above the bottom 1/2 inch of the unit.

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

80 Pieces Water Test Litmus Strips Litmus ph Paper Soil Acidity Meter Liquid pH Tester 1-14
10 Review

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

Efficiently Test Your Antifreeze And Battery Acid With A 3-In-1 Refractometer
18 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 Dioxide Controller for Digital Gas Monitoring
5 Review

Digital multimeter RGK DM-12
6 Review

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