[SPEED & ACCURACY] Integrated with the newest sensor and durable probe, allows you to get data in seconds. Simply insert it about 1 inch into water and receive an instant reading. Upgraded with a large backlit LCD for easier reading. [EASY TO USE] Our 3-in-1 TDS meter is a handheld digital device designed for quick and easy water quality testing. Monitor your drinking water quality anytime. Compact design with included case for portability. [MULTIPURPOSE & ESSENTIAL FOR DAILY USE] Ideal for testing water quality in drinking water, water filtration and purification systems such as RO or DI systems, aquariums, hydroponics (nutrient testing), pools and spas, and various commercial and industrial applications. [3-IN-1 MEASUREMENT: TDS, EC & TEMPERATURE] One device fulfills three measurement needs—TDS, EC, and temperature. Convenient, time-saving, and cost-effective. A reliable water testing solution for home water safety. [NOTE: EPA recommends TDS levels in drinking water be below 500 ppm] [AUTO-OFF AND HOLD FUNCTION] Automatically powers off after 2 minutes of inactivity to preserve battery life. Includes a hold function to lock 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 color variation between the product and the image. Measurement error allowed within +/- 1-3 cm.