Digital water tester for measuring TDS, EC, PH, salinity and water temperature, widely used in drinking water, swimming pool, aquarium, aquarium The probe is detachable, aging or damaged probe is easy to replace Automatic temperature compensation enables the water quality tester to get accurate readings at different water temperatures, and the temperature unit can be switched between / The sensitive waterproof probe allows the TDS meter to measure values in seconds, quickly and accurately. It will automatically power off after 5 minutes without any operation Equipped with rust-resistant probe, clear LCD display with backlight and data hold function, easy to read and record. Small size and light weight, easy to carry and store Specification: Item Type: Water Quality Tester Material: ABS CE test range: 0-10000uS/cm 10.01-19.99ms 20.1-400mS/CM Resolution: 1uS/cm; 0.1mS/CM Accuracy: 2% of reading TDS test range: 0 to 1000ppt 1000ppm to 10000ppt 10.1 to 200.0ppt Resolution: 1ppm; 0.1ppt Accuracy: 2% of reading Salinity test range: 0.00 to 25.00% Resolution: 0.01% Accuracy: 0.01-5.00% (0.1%) 5.10-25.00% (1%) pH test range: 0.01-14.00pH Resolution: 0.01pH Accuracy: 0.05pH Temperature compensation: automatic temperature compensation (ATC) Working Environment: 0-60.0 (32.0-140); 100% RH TDS factor: 0.4 to 1.0 Temperature range: 0.1-60.0 32.0-140 Temperature Accuracy: 0.5 Temperature resolution: 0.1/ Battery: 3 x 1.5 LR44 button cells (not included) Auto power off: 5 minutes Waterproof category: IP67 Power consumption: 2.9mA, power consumption for shutdown is 0 Feature: Within 150ppt, the accuracy is relatively accurate, while above 160ppt, the deviation is relatively large, the electrode should be cleaned after each use. Display Screen Size: Approx. 33 x 24mm / 1.3 x 0.9in Product size: approx. 183 x 37 x 37mm / 7.2 x 1.5 x 1.5in Weight: approx. 160g / 5.6oz List of packages: 1 x Water Quality Tester (Battery Not Included) 1 x User Manual Note: Be sure to clean the electrode after each use.