[SPEED & ACCURACY] Features a new sensor and durable probe to deliver fast, reliable readings in seconds. Provides results in as little as 1 inch of water. Includes a large backlit LCD screen for easy viewing in low light. [EASY TO USE] This 3-in-1 digital TDS meter offers a simple, handheld design for instant water quality testing. Ideal for monitoring drinking water quality on a regular basis. Compact and portable with included case for convenient transport. [MULTIPURPOSE USE] Great for testing water quality in a variety of applications including drinking water, water purification systems, aquariums, hydroponics (nutrient testing), pools, spas, and commercial or industrial uses. [3-IN-1 TESTING: TDS, EC & TEMPERATURE] One device measures TDS, EC, and temperature to meet multiple testing needs. Combines convenience, efficiency, and cost-effectiveness in a single water testing solution. [Note: EPA recommends a TDS level of 500 ppm or lower for drinking water.] [AUTO-OFF AND HOLD FUNCTION] Automatically powers off after 2 minutes of inactivity to extend battery life. Hold function locks 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 variations between the product image and actual item. Measurement may vary by +/- 1-3 cm.