TDS meter - Drinking water quality tester - High precision - Measuring range: 0-9999 ppm - Digital purity tester for swimming pools, spas, aquariums

【Wide Application】: The TDS tester can be widely used in water purifiers and filters, food (vegetables, fruits) and beverage quality control, swimming pools and spas, aquariums, hydroponics, etc.

【Three Test Modes】: The TDS meter measures the conductivity of water, which indirectly reflects the TDS value. The hold function allows you to record, read, and save measurement results.

Three test modes: ON/OFF is the switch button, HOLD is the lock button, and TEMP is the mode button, which can be customized to personal needs. 【Easy to Use】: The TDS tester can detect certain impurities in water, such as soluble salts, ionic organic compounds, heavy metal ions, etc., providing you and your family with greater convenience in obtaining cleaner water. No matter where you are—traveling, playing, or shopping—check the water's TDS value anytime with a measurement accuracy of ±2%. 【Auto Shut-Off Function】: If no operation is performed for 5 minutes, the TDS tester automatically shuts off to save power. To prevent the battery from running out.

【Measuring Range】: 0-9990 ppm, resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm. Note: The TDS pen cannot be used to measure high-temperature water (such as hot water) or to measure water subjected to strong shaking.