1、【5in1 Water Quality Tester】: Multifunctional design, real-time detecting of SALT, Total Dissolved Solids, PH, EC, and temperature, high-accuracy and quick response, practical and convenient to use. 2、【Highly Sensitive Probe】: Adopts a highly sensitive glass electrode probe for high durability and accuracy. Convenient operation, just put the probe into the water for a few seconds to measure the value of PH, SALT, Total Dissolved Solids, EC, TEMP. 3、【Digital LCD Display】: Features a backlit LCD display for easy reading in various illumination conditions, making it convenient to use in different settings, including low-light environments. 4、【High Precise Measurements】: Supports automatic conversion between PPM and PPT when the PPM value reaches 10,000 for accurate readings, ensuring accurate measurements. Equipped with PH/EC/Total Dissolved Solids/SALT calibration functions for superior performance and reliable results. 5、【Wide Applications】: Multi-parameter intelligent water quality detector, strong practicability, very suitable for aquariums, hydroponics, aquaculture, swimming pools, drinking water, laboratory, etc., making it an indispensable tool for various industries. Name: Water Quality Tester Material: ABS Battery: 3 * 1.5V LR44 button cell (not included) Display: LCD Backlight Display Measurement ranges: PH: 0.00-14.00PH, 0.01pH resolution, ±0.05pH accuracy Total Dissolved Solids: 0-10000ppm,10.1-200.0 ppt; 1ppm/0.1ppt resolution, ±2% F.S accuracy SALT: 0-20%, 0-10000ppm,10.1-200.0 ppt; 1ppm/0.1ppt/0.1% resolution, ±2% F.S accuracy EC: 0-10000μS/c-m, 1us/c-m resolution, ±2%FS accuracy Temperature: 0.0℃-60.0℃ (32℉-140℉) Calibration: pH: pH4.01/pH6.86/pH9.18(Priority calibration of pH6.86 EC/Total Dissolved Solids/SALT: 1413us/c-m;1382ppm(mg/L) 35PPT Work environment: 0-60℃ (32.0-140°F); 100%RH Waterproof: IP66 Automatic shut-off: 135 seconds Item size: 183 * 42 * 42mmmm / 7.20 * 1.65 * 1.65in Package size: 235 * 90 * 40mm / 9.25 * 3.54 * 1.57in Package weight: 160g / 5.64ounce Packing List: 1 * Water Quality Tester 3 * Powders (PH4.00&PH6.86&PH9.18) 1 * Screwdriver 1 * Guideline