Feature 15 in 1 Water Tester: Wide in testing range, the water quality tester is able to test the pH, TDS, temperature, EC, salinity of the water. 2LCD Digital Display: Colorful LCD screen will clearly show the testing valve, and the digital display will largely simplify your operation. 3Simpler Calibration: There are 3 kinds of pH calibration buffer powder that can calibrate the pH valve to 6.68, 4.01 and 9.18, very reliable. 4Broader Application: Suits for hydroponics, horticulture, swimming pool and spa, aquarium and coral tank, ionized water generator and more. 5Convenient Carrying: Designed to have a light weight and a compact size as well, the water quality tester is very convenient to carry and use.Item Type: Water Quality TesterMaterial: ABSBattery: 1 x polymer battery with 1000mAh capacity, shipped with built in battery. PH Range: 0-14TDS Range: 0-9999ppm, 10-100pptEC Range: 0-9999us/cm, 10-200ms/cmSalinity: 0.01% - 10%. : 0-60 : 32-140 .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 Tester1 x User Manual3 x Buffer Powder1 x USB Cable1 x Storage Box