
This device has worked well for me for four years. I now rely on Brix readings rather than the hydrometer which is temperature dependent and requires a lot more wine, cider etc. As for testing grapes for sugar content, it pretty much matches what my taste test tells me. .

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

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

Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review

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

π§ UEi Test Instruments DAFM3B Digital Multimeter
6 Review