Electronic PH meter 5 in 1 with TDS EC salinity temperature pH Multi-parameter tester waterproof IP67 High precision water pH meter Automatic temperature compensation MULTIFUNCTIONAL TESTER 5 in 1 water quality tester easily measures the pH / TDS / EC / Salinity and temperature of the liquid sample to judge the purity or pollution of the water. HIGH PRECISION High-precision algorithm chip and efficient sensitivity electrode ensure fast and accurate response. With precise ATC, the pH/TDS/TEMP function can accurately read sample values over a wide temperature range from 0 to 60, which solves the problem of inaccurate measurements caused by variations in temperature. liquid temperature. AUTOMATIC CALIBRATION The digital pH meter is calibrated at the factory, but recalibration is necessary in case of a long period of inactivity or after frequent use. pH 4.00/pH 6.86/pH 9.18 calibration powders are included. You can calibrate effortlessly to ensure measurement accuracy. HIGH QUALITY PH METER The green backlit LCD screen design guarantees reading results in any condition. The one-button reading lock feature allows you to lock the reading even if the tester is removed from the sample! IP67 is an international waterproof and dustproof certification. Protection against dust intrusion and short-term immersion. COMPACT AND VERSATILE- It is very suitable for family use and is a good choice for the health of family and children. friends. You can use this compact and content pocket tester (batteries included) to measure your aquarium, swimming pool, garden pond, bathtub. It can also be used to measure drinking water, reverse osmosis system, spa, soap mixtures, food, wine, beer or other liquids.