
Used to measure antifreeze concentration in my car. Reading indicated needed to add a lot more antifreeze. Some models may have a short lifespan.

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

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

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

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

Portable Handheld Manometer π for Accurate Pressure Differential Measurement
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§ UEi Test Instruments DAFM3B Digital Multimeter
6 Review

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