FeaturesQuick test of water pH and Cl2 levelsChlorine calibration for more accurate testingNo adjustment needed for pH testingSimple and easy to operateGet results instantlyLight weight and handyNo chemical testing and solutions neededPowered by one AA battery onlySpecificationsRecommended chlorine level for pools and spa is 1.2 to 1.7ppmRecommended pH level for pools and spa is 7.2 to 7.8Main unit:170 x 115mmProbe with handle: 150mm longProbe (only): 50mm long (not included black band)Cable (only): 130mm longPower Supply: 1 x AA 1.5V Battery(not included)Net Weight: 245.5g (excluded battery) Package included:1 x PH and Cl2 Tester with Probe