5 in 1 Water Quality Test:The pH meter is designed with 5 in 1 function, which can measure PH, TDS, EC, salinity and temperature simultaneously with high accuracy. Omnidirectional water quality measurement to ensure the health of water quality. Accurate measurement: In order to achieve high accuracy, it is equipped with titanium alloy probe and reliable automatic temperature compensation (ATC), which can ensure accurate reading at different temperatures. Auto power off function:The auto power off function cuts off the power after 5 minutes without any operation to save energy. IP67 waterproof rating:IP67 is an international waterproof certification water and dust. Protection against dust intrusion, short-term immersion. Wide range of uses: This water quality detector is ideal for testing water, swimming pools, aquariums, spas, hydroponics, laboratory and drinking water etc. Product parameters Conductivity test range: 0-10,000uS/cm 10.01-19.99ms 20.1-400mS/CM Resolution: 1 S/cm; 0.1mS/cm Accuracy: 2% of reading Tds test range: 0 to 1000ppm 1000ppm to 10000ppm 10.1 to 200.0ppt Resolution: 1ppm; 0.1 ppt Accuracy: 2% of reading Salinity measurement range: 0.00 to 25.00% Resolution: 0.01% Accuracy: 0.01-5.00% (0.1%) 5.10-25.00% (1%) pH test range: 0.01-14.00 pH Resolution: 0.01 pH Accuracy: 0.05 pH Temperature compensation: Automatic Temperature Compensation (ATC) Working Environment: 0 to 60.0C (32.0 to 140F); RH TDS factor: 0.4 to 1.0 Temperature range: 0.1-60.0 32.0-140 Temperature Accuracy: 0.5 Temperature resolution: 0.1C/F Auto shut-off: 5 minutes 3x1.5LR44 Display size: 33 x 24mm Dimensions and weight: 183 x 37 x 37mm(7.2 x 1.5 x 1.5in)/90g(3.2oz) Display: backlight not supported Power consumption: 2.9mA, power consumption is 0 when offAccuracy is relatively accurate within 150 ppt, and the deviation above 160 ppt is relatively large. Note : After each use, be sure to clean the electrode. Package List: 1 water quality test pen. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia