2pcs 16 in 1 Drinking Water Test Kit Strips Home Water Quality Test for Tap Easy Use This water quality testing kit can quickly identify that your drinking water is free of harmful substances, making it easier to protect your health and that of your family Features: 50 test strips for water in a sealed bottle with a color card. Each water test strip tests the 16 most cared-for main contaminants. Includes testing tube and dropper for easy sample collection. Provides fast and accurate results in three steps. Can be applied to drinking water, pools, ponds, aquariums, industrial wastewater, and more. Ideal for water testing at home, laboratory, or in school. Specifications: Material: PVC Package Size(LxWxH): 5.5 x 5.5 x 14.5cm Testing Parameter: Total Alkalinity, PH, Cyanuric Acid, Carbonate, Hardness, Total Chlorine, Free Chlorine, Bromine, Nitrate, Nitrite, Iron, Chromium, Lead, Copper, Mercury, Fluoride Testing Time: 30s Accuracy: 97%+ Expiration date: 24 Months Expiration date after opening: 3 Months Inspection method: 1.Dip a testing strip into water for 2 seconds. 2.Remove it and hold horizontally for 30-60 seconds (Please do not shake excess water off). 3.Compare to color chart to read the answer Package Contents: 100 x Test Strips 2 x Testing Tupes 2 x Droppers 2 x Manuals Please Note: 1.Store in a cool dry place 2.Please allow slight errors due to manual measurement and different monitors.