Rapid onesecond TDS detection with accurate results: measures drinking water quality quickly and reliably. Protects family health: helps ensure the water your family drinks is within acceptable TDS levels. Reliable coreelectronics design: registered product uses a core chip; test results are checked for you. features include a dualchannel computer chip, a lowpower miniature intelligent controller, and stable welding quality on the integrated board. Clear, intuitive display and rugged build: definition display for easy viewing, waterproof design, and a precision probe for stable measurements. Use scenarios: At home: test tap water or filtered water for drinking, cooking, and baby formula preparation. In small offices, dorms, or cafes: quickly verify water quality before preparing beverages. While traveling or outdoors: assess water from hotel taps, camp streams, or other public sources to ensure suitability for drinking or cooking.