5 in 1 Multi-Function Water Quality Tester which can measure pH, TDS, EC, Salinity and Temperature in Solution. Perfect for Testing Drinking Water pH Level, Swimming Pools, Aquariums, Hydroponics ect, comes with a Backlit Digital Display that will Automatically Shut-off after 5 minutes, has Auto Temperature Compensation and has a Waterproof Grade of IP67Type: Water Quality Tester - Material: ABSElectrical Conductivity Test Range: 0-10000u - S/cm 10.01-19.99ms 20.1-400m - S/CMResolution: 1u - S/cm; 0.1 m - S/CMAccuracy: 2% of the reading - Test Range: 0-1000ppm 1000ppm -10000ppm 10.1-200.0 PPTAccuracy: 2% of the reading - Salinity (Salinity) Measuring Range: 0.00-25.00%Resolution: 0.01%Accuracy: 0.01-5.00% (0.1%) 5.10-25.00%(1%)PH Test Range: 0.01-14.00p - HResolution: 0.01p - HPrecision: 0.05p - HTemperature Compensation: Automatic temperature compensation (ATC)Working Environment: 0-60.0 (32.00-140 ); 100% RHFactor: 0.4-1.0Temperature Range: 0.1-60.0 32.0-140 Temperature Accuracy: 0.5 Temperature Resolution: 0.1 / Automatic Power-off: 5 min - Battery: 3 × 1.5 LR 44 (Batteries Included)Size: Approx. 180 × 37 × 37mm / 7.2 × 1.5 × 1.5in - Display: Supports backlight - Waterproof Grade: IP67Power Consumption: 2.9m - AShutdown Power Consumption: 0Item Weight: Approx. 90g Package Includes 1× 5 in 1 Multi-Function Meter 3x pH Buffer Powder 1x Instructions