Quantity: One Set Main Unit: 190 x 120mm Handle, with handle: 150mm long Probe (Only): 48MM long Cable (Only): 130mm long 1 Cell: 1 AA battery 1.5V power supply Weight: 160g (without battery) Include: PH value, Cl2 tester, 1 x manual report No pollution, no consumables, self-cleaning. Analysis of water quality of swimming pools or pools. Easy to use and carry. Quickly detect pH, organic pollution and harmful substances in water. For Testing water pH and chlorine levels in pools and spas With this handy tester, you can quickly test whether your chlorine and pH are within the ideal range of 7.8, 1.2, 1.7 ppm chlorine, and 7.2 ppm pH. If your test results are outside this range, it provides useful information to adjust your pool's chlorine and acid-base levels accordingly. This is a great tool you may need to maintain your pool water.Good quality product