Use the system at my shop to ensure my machines get even water cooler cooling. Everyone I've bought leaks from both streams. I had to glue a piece of electrical tape to keep it from leaking. Otherwise they work well up to 10 emails per minute and then don't read. I bought 5 of these.
π― Honey Refractometer with Automatic Temperature Compensation (ATC) - Tiaoyeer Moisture, Brix, and Baume Refractometer for Honey, 58-90% Brix Scale Range - Honey Moisture Tester
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TDS water quality tester - TDS water hardness meter (portable digital salt meter for water analysis)
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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
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Efficiently Test Your Antifreeze And Battery Acid With A 3-In-1 Refractometer
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π Dioxide Controller for Digital Gas Monitoring
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π¬οΈ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review
π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
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Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review