[SPEED & ACCURACY] Features the latest sensor technology and a durable probe to deliver fast, reliable readings in seconds. Get accurate results with just one inch of water. The upgraded large backlit LCD screen ensures easy reading in any lighting condition. [EASY TO USE] This 3-in-1 digital TDS meter is a compact, handheld device designed for quick and convenient water quality testing. Monitor your drinking water quality anytime, anywhere. Includes a protective case for added portability. [MULTIPURPOSE & ESSENTIAL] Ideal for testing drinking water, purification systems, aquariums, hydroponics, pools, spas, and various commercial and industrial applications. A versatile tool for monitoring water quality in multiple environments. [3-IN-1 MEASUREMENTS] Measures TDS, EC, and temperature with a single device. Combines multiple testing functions into one compact unit, saving time and offering convenience for everyday water testing needs. [AUTO-OFF AND HOLD FUNCTION] Automatically powers off after 2 minutes of inactivity to extend battery life. Includes a hold function to lock readings for easy viewing and recording. [COMPLIANCE NOTE] According to the EPA, the recommended maximum TDS level for drinking water is 500 ppm. [PRODUCT DETAILS] Color: White. Material: Plastic. Package Contents: 1 x Water Quality Tester. Note: Other items not included. Due to lighting and display differences, the actual color may vary slightly from the image. Measurement error is +/- 1-3 cm.