After 2 weeks it started acting wacky. It was right in the middle of ph for nutes. It screwd 5 gallons of nutrient rich water uo. Went from 7 to 10 to 7 . I had to use a manual ph to get it close. I had to calibrate every week . Then it just wouldn't work anymore. Ill be getting my money back anf buying a better one.
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
Efficiently Test Your Antifreeze And Battery Acid With A 3-In-1 Refractometer
18 Review
Portable digital multimeter with sound continuity and thermocouple (electric tester) LTX DT-838
7 Review
🔍 Dioxide Controller for Digital Gas Monitoring
5 Review
Digital multimeter RGK DM-12
6 Review
Portable Handheld Manometer 📏 for Accurate Pressure Differential Measurement
5 Review
🌬️ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review