Features: Instantly measure water purity with this high sensitivit probe water tester, delivering accurate 0.1 second readings to assess dissolved solids and verify filtration efficiency for safe drinking water. Features easy read LCD screen displaying real time values and built in water quality grading (0-20=excellent, 20-50=moderate) to simplify decision making about water safety and purification needs. Ideal for health conscious families, outdoor adventurers, and travelers seeking compact tools to monitor drinking water quality in homes, campsites, hotels, or emergencies situations. Compact ABS construction and pocket sized design enable effortless water testing during hiking trips, aquarium maintenance, or daily kitchen use. Corrosions resistant sensors ensures long lasting reliability, while auto off functionality conserves battery life for extended field use as a portable water quality meter. Specifications: Component: ABS. Size: 144x17x15mm/5.66x0.66x0.59inch Weight: 25g. Battery capacity: 60mAh. Temperature ranging: 4-60°C. Battery specifications: 1.5Vx2 (AG5 button battery). Package Includes: 1pcs Handheld Water Tester note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.