Features: Made of high quality plastic shell, durable and sturdy. Easy to use, no more chemicals required. A handy tool for testing water pH and chlorine levels for swimming pools, spas, aquariums, hydroponics and other water systems. A large screen displays the pH and chlorine level test result for easy and accurate reading. Lightweight and compact, easy to carry. With a hole for convenient hanging. Specifications: Item Name: Water Quality Tester Main Material: ABS + Metal Color White Battery: 1AA (not included) Recommended chlorine level for pools and spas: 1.2~1.7ppm Recommended PH level for pools and spas: 7.2~7.8 PH Product size: 170115*30mm Product weight: 200g Note: * Please read the enclosed instructions carefully before operating the tester. * Please do not immerse the probe in any liquid other than pool or hot tub water. * There may be some deviations due to manual measurement or slight color difference due to shooting conditions. Thank you for your understanding. Package