[SPEED & ACCURACY] Integrated with the latest sensor and durable probe, allowing you to get data in seconds. Just in about 2.5 cm of water directly, you get the reading. In addition, upgraded with a large backlit LCD which makes reading easier! [EASY TO USE] Our 3-in-1 TDS meter is an easy-to-use handheld digital meter to instantly check your total water quality. It allows you to keep an eye on your drinking water quality at all times! A compact design with a case allows you to take it with you wherever you need it. [VERSATILE & A MUST-HAVE] Concerned about water quality? The TDS meter is an excellent tool for testing water quality for drinking water and purification systems such as systems or DI systems, aquariums, hydroponics (testing nutrients), pools and spas, commercial and industrial applications, and more. [INTEGRATED 3 TESTS, TDS EC & TEMP] Three different measurement needs can be met by one water tester. Not only convenient, but also saves time and money, definitely a useful water test kit for your water safety. [NOTE: EPA suggests that TDS for drinking water should be 500 ppm] [AUTO-OFF AND HOLD FUNCTION] The TDS tester automatically turns off after 2 minutes of inactivity to save batteries. Features a hold function that saves measurements for convenient reading and recording. Color: White Material: Plastic Package contents: 1 * Water quality tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.