General description Test the quality of different waters with the TDS-3 Drinking Water Meter. This portable water quality tester allows you to ensure you enjoy the best water quality and temperature. Please note that it cannot test pH levels or the specific value of certain substances dissolved in water. Technical specifications Measurement Range: 0-9990 ppm Resolution: 1 ppm (0-999 ppm), 10 ppm (1000-9900 ppm) Auto Shut-off: Turns off after 10 minutes of non-use Hold Function: Saves measurements for easy reading and recording Compatibility and accessories Suitable for use in water purifiers and filters Can be used for monitoring food quality (vegetables, fruits) Applicable for swimming pools, spas, aquariums, and hydroponics Other information Manual measurements may have a 1-3 cm error Color difference may occur due to lighting and display variations