[SPEED & ACCURACY] Integrated with a sensor and durable probe, it delivers fast and accurate readings in seconds. Get results instantly with just about 1 inch of water. Upgraded with a large backlit LCD screen for easy reading in low light conditions. [EASY TO USE] This 3-in-1 TDS meter is a handheld digital device designed for quick and simple water quality testing. Monitor your drinking water quality anytime, anywhere. Compact design includes a protective case for portability and convenience. [MULTIPURPOSE USE] Ideal for testing drinking water, water filtration and purification systems, aquariums, hydroponics (nutrient testing), pools, spas, and various commercial and industrial applications. A reliable tool for monitoring overall water quality. [3-IN-1 TESTING: TDS, EC & TEMP] One device measures Total Dissolved Solids (TDS), Electrical Conductivity (EC), and temperature. Combines three essential functions in a single tester, saving time and offering comprehensive water analysis. [AUTO-OFF AND HOLD FUNCTION] Automatically powers off after 2 minutes of inactivity to extend battery life. Features a hold function to lock the reading for easy viewing and recording. Color: White Material: Plastic Package Contents: 1 x Water Quality Tester Note: Light reflection and display differences may cause slight color variation between the product image and actual item. Measurement error allowance is +/- 1-3 cm.