TDS Tester Meter with Back Screw Calibration Smart Gate Lock available in black and white

available in black and white

remote control

Once you have this switch

Protect your home

and Tuya Smart app

TDS Tester Meter with Back Screw Calibration Smart Gate Lock available in black and whiteProduct Description: The TDS 3 Digital Water Purity Tester is an essential tool for checking water quality in homes, offices, labs, and industries. With high accuracy calibration, this device ensures precise measurements of TDS, EC, and temperature, helping you determine the purity of drinking water, RO systems, aquariums, swimming pools, hydroponics, and more. Featuring a large LCD display, this compact and portable device provides quick and accurate