I bought this and want to keep the ec meter, it works well but the ph meter number never stops, just fluctuates forever. Can I send the ph meter back and get a half refund or a new ph meter? I've tried calibrating a few times and it will still go from 14.96 to 3 or 4 and never stay still so I can't know for sure what the pH is? I used all 3 different buffers at different times, washing with distilled water each time.
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
Digital PH Meter Tester - Tiaoyeer Water Quality Tester With ATC, 0.01PH High Accuracy, 0.00-14.00 Measurement Range, 0.01 Resolution For Drinking Water, Aquarium, Swimming Pools, Hydroponic
8 Review
TDS water quality tester - TDS water hardness meter (portable digital salt meter for water analysis)
9 Review
π PH 1-14 Extensive Storage Testing Monitoring: Optimize Your Storage with Precise pH Level Monitoring
6 Review