- Calibrate with distilled or tap water
- Not secure

3
·
Average





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

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

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

🔍 Dioxide Controller for Digital Gas Monitoring
5 Review

🔥 Advanced Testo Wireless Hot Wire Anemometer Technology
4 Review

🔧 UEi Test Instruments DAFM3B Digital Multimeter
6 Review

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