High Accuracy & ATC Function :Equipped With ±0.05 PH Accuracy And Automatic Temperature Compensation (0-60°C), Ensuring Precise Readings In Different Water Conditions. Large LCD Backlit Display & Easy Calibration :Features A Bright LCD Screen For Clear Visibility In Any Lighting, With One-Touch PH, EC, And TDS Calibration For Convenience. 5-In-1 Multi-Functional Water Tester :Measures PH (0.01-14.00), TDS (0-10000PPM), EC (0-400.0MS/CM), Salinity (0-25.00%), And Temperature (0.0-60.0°C), Providing Comprehensive Water Analysis. IP67 Waterproof & Design :The IP67-Rated Waterproof Body Makes It Perfect For Drinking Water Testing, Pools, Fish Tanks, Aquaculture, And Hydroponics. Replaceable Probe & Long Battery Life :Designed With A Detachable Electrode For Long-Term Use And Powered By 3 X 1.5V LR44 Batteries, Ensuring Extended Operation., Weight: 0.3968320716 pounds, Manufacturer: Yoeruers