Features 1、Accurate measurement, can quickly and accurately measure PH and chlorine, and is used to kill algae and microorganisms. 2、Easy to use, portable chlorine and PH water quality detector, compact and easy to use. 3、The ideal tool to keep the pool or spa in the normal range of chlorine and pH. 4、It is used to routinely monitor the pH value and chlorine level of swimming pools, SPAs and various water sources. 5、This electrical measuring instrument can save you time and money, and avoid immersion in water when using it. Specification Item Type: PH Water Quality Tester Material: Plastic Recommended CL2 for Swimming Pools and SPA: 1.2 to 1.7 ppm Recommended pH for Swimming Pools and SPA: 7.2 to 7.8 Main Unit Size: Approx. 190x20mm / 7.5x0.8in Handle Probe Length: Approx. 150mm / 5.9in Probe Length: Approx. 48mm / 1.9in Cable Length: Approx. 300mm / 11.8in Power Supply: 1xAA Alkaline Battery (1.5V) (Battery Not Included) Package List 1 x PH Water Quality Tester (Battery Not Included) 1 x Sandpaper 1 x Manual