So after a little more than a month it should stay connected to the mains, the battery isn't charging. In addition, the values fluctuate somewhat. I don't want to calibrate it every month so I guess I'm losing money. Too bad someone doesn't provide what works.
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
π PH 1-14 Extensive Storage Testing Monitoring: Optimize Your Storage with Precise pH Level Monitoring
6 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