
Very good at measuring obvious water pollution, but not sensitive enough and stable in the 0-50 range for nearly clear/filtered water. In practice, a water quality close to 25 varies too much with temperature to make the measurement easy. The second mode, which displays both temperature and current over a more limited range for this scenario, can be a significant benefit.

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

🍯 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

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

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