Features: Multi-Parameter Measurement (5-in-1 Functionality): This device accuratly measures pH, Total Dissolved-Solids (TD-S), Electrical Conductivity (EC), Salinity, and Temperature. GHigh-Precision pH Monitoring: Achieve exact-pH readings with a high-degree of accuracy, crucial-for maintaining balanced water in aquariums, hydroponics, or for ensuring safe drinking waterComprehensive TDS-Analysis: Quickly determine the level of dissolved impurities in your water, helping you assess water puritys and filter effectiveness. Ideal for reverse osmosis systems and tap water quality checks.Clear & Backlit LCD Display: Features a large, easy-to-read LCD screen with a backlight, allowing for convenient readings even in dimly lit conditions or at night, enhancing user experience.Wide Range of Applications: An essential tool for a multitude of uses, including testing drinking water, swimming pools, spas, aquariums, hydroponics, laboratory use, environmental monitoring, and food processing.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurement Description:TDS-measurement range: 0-1000ppmEC measurement range: 0-10,000s/cmPH measurement range: 0.01-14.00pHSalt water meter measurement range: 0.00-25.00%Temperature measurement range: 0 DegreeC-60 DegreeCMaterial: ABS plastic body + electrode probePower supply: Built-in 3 1.5V button batteriesSet includes: 1 tester, 3 calibration powder packs, 3 1.5V button batteries, 1 English instruction manual, and 1 color box.Package List:1 Pool Salt Tester