Digital pH / TDS / EC / Water Quality Meter Tester Widely used in aquarium, glass fish pond, pharmaceutical research, agriculture, laboratory, aquatic environment, quality control and other fields. Functions: Easy to use, high accuracy. Quick and easy installation and operation. EC: Support automatic identification of 3-point calibration (1413us 12,88ms and 111,8ms) Built-in 3 calibration points (1413uS / cm 12,88ms / cm 111,8ms / cm) PH: 1 point (6,86) or 2 points (6,86 4,00) (6,86 9,18) or 3 points (6,86 4,00 9,18) can automatically identify the calibration solution. It is a professional water level measuring instrument, the operation is simple, fashion appearance, small size and easy to put in your pocket. It has automatic temperature compensation. 5 minutes without operation, the meter will turn off automatically. Save energy, extend battery life. (Battery not included) Thanks to the backlight function, it is more convenient to read. Specifications: Material: ABS IN: Measuring range: 0 to 10000 uS / cm 10,01-19,99 ms 20,1-400 ms / cm Resolution: 1uS/cm; 0,1mS/cm; Accuracy: 2% reading TDS : Measuring range: 0 to 1000 ppm 1000 to 10000 ppm 10,1 to 200,0 PPT Resolution: 1 ppm; 0,1 PPT Accuracy: 2% reading Salinity: Resolution: 0,01% Accuracy: 0,01-5,00% ( 0,1%) 5,10-25,00% ( 1%) PH: Measuring range: 0,01-14,00pH Resolution: 0,01pH Accuracy: 0,05 pH Working environment: 0 to 60,0 (32,0-140 ); RH 100% TDS: 0,4 to 1,0 Temperature range: 0,1-60,0 32,0-140 Temperature accuracy: 0,5 Temperature resolution: 0,1 / Waterproof: IP67 Display Size: 33*24mm Product Size: 180*37mm/7,1*1,5inch Item Weight: 86 g / 3,0 oz Package Weight: 90g/3,2oz List of things to pack: 1 * Water Quality Monitor Tester 3 * PH buffer powders EAN: 750749684978 The pH / TDS / EC digital water quality tester is a device that allows you to measure water quality based on several parameters. This tester is equipped with several probes that allow you to measure pH, TDS (total content of dissolved substances) and EC (electrical conductivity) water.