(1) How do I know if this device is accurate? Presumably measuring total dissolved solids? Without a home appliance to compare your readings against, how would you rate its accuracy and therefore its value? (2) This device is designed to be submerged in water and then read dissolved solids, but experience has shown that it will fail if the device is submerged in water. Why can't a device designed for use in water work when wet?
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
Portable digital multimeter with sound continuity and thermocouple (electric tester) LTX DT-838
7 Review
80 Pieces Water Test Litmus Strips Litmus ph Paper Soil Acidity Meter Liquid pH Tester 1-14
10 Review
Efficiently Test Your Antifreeze And Battery Acid With A 3-In-1 Refractometer
18 Review