Multi-measurement test strips Insta-TEST® Free chlorine, total chlorine, hardness, pH, nitrate nitrogen, nitrite nitrogen 2933-G 1 piece

It is easy to operate and the results are immediate. After immersing the pad in the liquid for 2 seconds, the measurement can be performed by comparing the pad with the color chart attached to the case. Measurement items: Free chlorine, total chlorine, hardness, pH, nitrate nitrogen, nitrite nitrogen Number of measurements: 25 Quantity: 1 piece Free chlorine/total chlorine: 0, 0.5, 1, 3, 5, 10 ppm Hardness: 0, 50, 100, 200, 400ppm (pgp) pH: 4, 5, 6, 7, 8, 9, 10 Nitrate nitrogen: 0, 5, 10, 25, 50 ppm Nitrite nitrogen: 0, 0.5, 1, 5, 10 ppm Main applications: Measuring the quality of drinking water, wastewater, etc.