The reagents I've tested so far have been stable and fairly close to "professional" pool testing companies. The reagents I tested with PoolLab1.0 are: - Free Chlorine DPD3 - Total Alkalinity of Chlorine - Alkalinity I ordered the reagents to determine calcium hardness.
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
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
Efficiently Test Your Antifreeze And Battery Acid With A 3-In-1 Refractometer
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80 Pieces Water Test Litmus Strips Litmus ph Paper Soil Acidity Meter Liquid pH Tester 1-14
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