[SPEED and ACCURACY] Integrated with the newest sensor and durable probe, this meter delivers fast and accurate readings in seconds. Get results 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 compact, handheld digital device designed for instant water quality testing. It allows you to monitor your drinking water quality anytime, anywhere. The portable design includes a protective case for convenient storage and transport.[MULTIPURPOSE and ESSENTIAL] Concerned about water quality? This TDS meter is an ideal tool for testing drinking water, water filtration systems, aquariums, hydroponics (nutrient testing), pools, spas, and various commercial and industrial applications.[3-IN-1 TESTING: TDS, EC, and TEMP] One device measures Total Dissolved Solids (TDS), Electrical Conductivity (EC), and temperaturemeeting multiple testing needs in a single unit. Convenient, time-saving, and cost-effective, its a valuable tool for maintaining water safety. [NOTE: The EPA recommends that TDS levels in drinking water should not exceed 500 ppm.][AUTO-OFF AND HOLD FUNCTION] The tester automatically powers off after 2 minutes of inactivity to extend battery life. The hold function freezes the current reading on display for easy viewing and recording.Color: White Material: Plastic Package Contents: 1 x Water Quality Tester (batteries included) Note: Other accessories shown in images are not included. Note: Lighting and display differences may cause slight color variations between the product image and the actual item. Measurement error is 1-3 cm.