Feature 1Suitable for drinking water, swimming pool, aquarium, reverse osmosis system, spa or hydroponic. 2Easy and convenient to use, very suitable for scientific experiments in children schools. 3The tester has a sensitive electrode sensor to read accurate values, practical to use. 4Wide application range, sensitive test, accurate measurement and simple operation. 5Made of high-quality ABS material, wear-resistant, durable and long life.Condition: 100% Brand NewItem Type: Water Quality TesterMaterial: ABSConductivity: 0.055us/cmTDS: 0-1000ppmCelsius: 0.1-80.0Fahrenheit: 32.0-176.0Battery: 3 x 1.5LR44 (Included)Weight: Approx. 79g / 2.8oz .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Water Quality Tester (Battery Included)1 x User Manual