เครื่องวัดคุณภาพน้ำ Digital Water Quality Detector 3 in 1

High precision electrode: Equipped with premium quality titanium alloy probe, TDS water quality tester enables quick and convenient test. Put the probe into water and LCD shows accurate results in seconds. Widely application: Can be used to test Drinking Water ,Laboratory ,Hydroponics ,Aquarium ,Swimming Pool ,RO/RD system, food & beverage, whole house filtration system water, res tank ,spring water ,ppm tested works well. Measurement Range: Smart pen combines TDS, EC, and a temperature meter for improved accuracy. With an Automatic Temperature Compensation and the measuring range of 0-9999 ppm +/- 2%, it is an extremely handy device to have around. Auto-Off Function: TDS pen tester has the function of auto-off. The ppm meter will automatically shut off with 10 minutes inactivity, to save the battery energy if we forget to close the meter after using. Easy to use: Just remove the protective cap, press ON/OFF button, then stick the TDS meter tester into the water ( no more than 4 cm), waiting until the display stabilizes, the TDS meter will be auto-locked on in seconds, TDS tester shuts off automatically after 2 minutes of non-use to conserve batteries. Features a hold function that saves measurements for convenient reading and recording.