Features: Accurately measure with this multi functional water quality tester, designed for precise analysis in diverse aquatics environments. Equipped with a high sensitivity sensors and rapid response technology, it delivers stable readings within seconds while featuring easy to read LCD screen. Ideal for home users, lab professional, and outdoor enthusiasts requiring reliabled water quality monitoring. Perfect for testing drinking water, aquariums, swimming pools, or natural water sources during camping and hiking trips. Compact ABS construction ensures portability and durability, making it essential tool for fast on site water analysis without battery dependency. Specifications: Component: ABS. Size: 183x37x23mm/7.2x1.45x0.9inch Weight: 90g. Measurement accuracy: ±2%F.S. Power supply voltages: 3V. Package Includes: 1 Set Water Quality Meter 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.