Features: Multi-Parameter Measurement (5-in-1 Functionality): This device accuratly measures pH, Total Dissolved-Solids (TD-S), Electrical Conductivity (EC), Salinity, and Temperature. G High-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 water Comprehensive 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 effect 2.Please allow 1-3cm deviation due to manual measurement Description: TDS-measurement range: 0-1000ppm EC measurement range: 0-10,000s/cm PH measurement range: 0.01-14.00pH Salt water meter measurement range: 0.00-25.00% Temperature measurement range: 0 DegreeC-60 DegreeC Material: ABS plastic body + electrode probe Power supply: Built-in 3 1.5V button batteries Set 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