
I have had many problems with this sensor/meter. This would give significantly different readings for the same fluid sample, despite cleaning between tests and several other troubleshooting methods. Given 1 star because it's useless to a scientist if unreliable. Do not use this for quantitative measurements

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

Efficiently Test Your Antifreeze And Battery Acid With A 3-In-1 Refractometer
18 Review

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

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