
I liked that I didn't have to calibrate anything. It was embarrassing that the readings change, albeit slightly (within the table). On the other hand, if you need an accurate tester, then, apparently, you need to take a more serious device with calibration. Surprised that boiled water is more harmful than tap water))) My scores: - distilled water - 30 - boiled water (cooled) - 131 - tap water (without filters) - 125 - hot tap water (without filters) - 180

🍯 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

Portable digital multimeter with sound continuity and thermocouple (electric tester) LTX DT-838
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

💧 Enhanced Water Analysis: HM Digital HydroTester Offers Unparalleled Resolution and Accuracy
6 Review

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

🌡️ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review

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

🔧 UEi Test Instruments DAFM3B Digital Multimeter
6 Review