7-in-1 Aquarium Test Strips: pH, Nitrites, Nitrates, Total Hardness, Free Chlorine, Alkalinity, Carbonate, Saltwater and Freshwater Accuracy (Pack of 100)

General Description: These 7-in-1 aquarium test strips accurately measure various water quality parameters, including pH, nitrites, nitrates, total hardness, free chlorine, alkalinity, and carbonates. This pack of 100 strips is designed for use in aquariums, freshwater and saltwater swimming pools, as well as spas and hot tubs. Technical Specifications: Material: High-quality imported filter paper; Weight: 130g; Test Time: 60 seconds; Anti-VC Interference: Yes; Instructions: To use the strips, dip one into the water for 2 seconds, remove it, and wait 15 seconds. Then, compare the color change of the strip with the color chart on the side of the bottle to obtain the result.