High AccuracyEssential tool for quick and accurate ph and chlorine readings, as chlorine is the most commonly used disinfectant for water by killing bacteria, algae and microorganisms. Safety A great tool to keep your pool or spa within safe chlorine and pH ranges, no more chemicals or more speculative work. Suitable forAn electro tester to test pH and chlorine levels (Cl2) in water for routine monitoring of pH and chlorine levels of swimming pools, spas and different water sources. Easy to UseIt just has a switch, easy to operate, simple design a switch to test pH and CL2. Save time and money with this electro tester. Brand New100% brand new high quality chlorine tester, strictly tested to ensure the best quality before shipment, safe to use. Description: When chlorine and pH levels are altered, it can lead to diarrhea and ear and skin infections. A good chlorine pH level keeps bad bacteria away: if the pH rises too high, the germ-killing power of chlorine decreases. Chlorine can also be ingested if a large amount of nitrogen (from debris, pee, sunscreen, or sweat) or other organic matter enters the pool. That's why it's best to test chlorine and pH levels all the time - they can change from day to day depending on how the pool is used. It is important to keep your pH levels in the proper range to keep your equipment and pool finish intact. Your chlorine will dissolve faster with a low pH. High pH levels render chlorine inactive. Specification: Material: ABS Color: As shown in the picture Unit Main: approx. 190 x 20mm/7.5 x 0.8in Handle probe: approx.150mm/5.9in (L) Probe (only): approx.48mm/1.9in (L) Cable (only): approx. 300mm/11.8" (L) Battery: 1 x 1.5V AA battery (not included) The recommended chlorine level for swimming pools and spas is 1.2 to 1.7 ppm Recommended pH level for swimming pools and spas is 7.2 to 7.8 Package List: 1 x PH/CL2 Meter 1 x Manual Note: The detector will not recommend immersion, except for pool or spa water.