DiyStudio Digital TDS TDS EC Temperature Water Quality Tester with High Accuracy Hold LED and Carrying Ideal for Swimming Hot and Test Meter with

High Accuracy: DiyStudio Professional Handheld Test Pen 3-in-1 for TDS, EC, and Liquid Temperature. Features alloy probes, TDS: 0-9990 ppm, conductivity: 0-9990 us/cm, temperature test range: 0.1°C to 80.0°C, accuracy: ±1%. 【Long-lasting Model】The TDS pen features a lock and auto shutoff function. Automatic temperature compensation (ATC) ensures accurate readings at various temperatures. Lightweight and portable, it's convenient for testing water quality anytime, anywhere. 【Easy to Use】Turn on the TDS meter, place the titanium alloy probe in the water, and gently stir the water. After a few seconds of stable readings, the LCD will automatically display the water quality information in 5 seconds. The ppm meter will automatically shut off after 2 minutes if there is no operation to conserve its lifespan. [EC Meter Calibration Method 1-2] 1. Preparation: Solution of known value 2. Press the first ON/OFF switch button to turn on the power [EC Meter Calibration Method 3-5] 3. Remove the electrode shield. 4. Place the electrode in a solution of known value and gently swirl the solution to expel any air bubbles around the electrode. 5. In the detection state, press and hold the center button for 5 seconds, then press the 1 and 3 buttons to adjust up and down to the known solution value, and calibration is complete. 3-in-1 TDS Meter: Test water purity and temperature to determine whether your water or other water is safe and healthy for your body and health, and whether you need to replace your filter. Ideal for home and laboratory use, this TDS & EC meter is ideal for testing electroplating solutions, boiler water, aquarium water, swimming pool water, photo flushing solutions, well water, deep sea water, aquaculture, food processing, and more. 【Note】Please note that the TDS&EC&Temperature Meter has been pre-calibrated by 1413 solution. It can be used directly and can last for one year without second calibration. 1413 calibration solution is not included. explanation: 1. Lock function: Easy to read and record, the instrument will lock the reading. 2. 5-minute automatic shutdown function, when the power is turned off, the power is turned off. 3. Measurement range: Conductivity: 0-9999 ppm, TDS: 0-9999 ppm, Celsius: 0.1-80.0°C, F: 32.0-176.0°F, Accuracy: ±2%, Net weight: 55g, Size: 154*30*14mm Use the procedure: 1. Remove the electrode protection before use. 2. Press the switch to immerse the electrode in the test solution. 3. When the number stabilizes, press the HOLD button to retrieve the solution. 4. After reading, turn off the meter. Cleaning: Wipe the electrode with the front of the sleeve. Package includes: 1pc *Water Quality Tester 1PC *User Manual (non-Japanese) Note: The battery model is CR2032, but this package does not include batteries for international logistics.