[SPEED & ACCURACY] Integrated with a sensor and durable probe, this meter delivers fast and reliable readings in seconds. Get results instantly with just about 1 inch of water. Upgraded with a large backlit LCD screen for easy reading in any lighting condition. [EASY TO USE] This 3-in-1 TDS meter is a handheld digital device designed for quick and accurate water quality testing. Monitor your drinking water quality anytime, anywhere. Compact design includes a protective case for portability and convenience. [MULTIPURPOSE & ESSENTIAL TOOL] Ideal for testing water quality in various applications including drinking water, water filtration and purification systems, aquariums, hydroponics (nutrient testing), pools, spas, and commercial or industrial uses. [3-IN-1 MEASUREMENTS: TDS, EC & TEMP] One device measures Total Dissolved Solids (TDS), Electrical Conductivity (EC), and temperature, meeting multiple testing needs in a single tool. Saves time and money while supporting water safety and quality control. [NOTE: EPA recommends TDS levels in drinking water should not exceed 500 ppm.] [AUTO-OFF AND HOLD FUNCTION] Automatically powers off after 2 minutes of inactivity to extend battery life. Includes a hold function to freeze readings 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 variations in color appearance. Measurement error allowed: +/- 1-3 cm.