I bought this to test our pool water for bacteria. It was very easy to use and arrived quickly. However, he never recorded readings for 15 minutes or 30 minutes or even an hour. We left it overnight and woke up with a reading that thankfully was negative. At least we could test it. We were able to swim in it after electrocuting it again just to be sure.
TDS water quality tester - TDS water hardness meter (portable digital salt meter for water analysis)
9 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
Efficiently Test Your Antifreeze And Battery Acid With A 3-In-1 Refractometer
18 Review
π Dioxide Controller for Digital Gas Monitoring
5 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 Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review
π§ UEi Test Instruments DAFM3B Digital Multimeter
6 Review