The essential tool for fast and accurate pH measurementChlorine is the most commonly used water disinfectant to kill bacteria, algae, and microorganisms.The ideal tool to keep a pool or spa within a safe chlorine and pH range, without chemicals and without guesswork. Electrical tester for pH and chlorine (Cl2) levels for routine monitoring of pH and chlorine levels in swimming pools, spas and various water sources.When chlorine and pH levels are too high in the whack, they can cause diarrhea and ear and skin infections. Proper chlorine and pH levels keep harmful bacteria out of the bay; if the pH is too high, the chlorine will be depleted. ChlorineChlorine is also consumed when large amounts of nitrogen (from excrement, urine, sunscreen, or perspiration) or other organic substances enter the pool. This is why testing chlorine and pH levels is best done regularly—they can change daily depending on pool usage. Maintaining your pH within the correct range is important for preserving the finish of your equipment and pool. Chlorine dissolves more quickly at a low pH. A high pH deactivates chlorine gas.This electrical meter saves you time and money.Note: The detector should not be immersed in the recommended water, except for pool or spa water.Specification sheetThe recommended chlorine level for swimming pools and spas is 1.2 to 1.7 ppm.Recommended pH level of 7.2 to 7.8 for swimming pools and spasSizeMain unit: 190 mm x 20 mmProbe with handle: 150 mm in lengthProbe (only): 48 mm in lengthCable (only): 300 mm long Power supply: 1 x AA alkaline battery (1.5v)Weight: 160g (without battery)