2-piece 3-in-1 multi-function digital TDS tester with TDS, EC, and temperature measurement, featuring a large backlit LCD screen for monitoring drinking water quality and hydroponics, etc. (not for pH

General Description The 3-in-1 digital TDS tester is a multifunctional tool designed for testing drinking water quality. It measures TDS (Total Dissolved Solids), conductivity (EC), and water temperature. This product is particularly useful for water purifiers, filters, swimming pools, aquariums, and hydroponic systems. It is not suitable for pH testing. Technical Specifications Probe Type: ABS plastic/metal alloy Weight: 160 g Battery Type: 3V button cell (CR2032) TDS Measurement Range: 0-9990 ppm Conductivity Measurement Range: 0-9990 µS/cm Temperature Range: 0.1°C to 80.0°C Temperature Accuracy: ± 2°C Operating Temperature: 32°F to 176°F Installation Before using the device, remove the protective sleeve from the electrode. Press the switch and immerse the electrode in the test solution. To take a measurement, wait until the displayed number stabilizes. Press the HOLD button to hold the reading. After the measurement, turn off the device and wipe the electrode clean. To switch from TDS to conductivity, press the SHIFT key. To change the temperature unit between Celsius and Fahrenheit, press the SHIFT key twice. Other information: Large digital LCD screen for easy reading. Automatic shut-off function after 5 minutes of inactivity to conserve power. Maintenance tips: Keep the electrode clean and remove the battery if the device will not be used for an extended period. User manual available in English and Chinese.