SPEEDACCURACY Integrated with the latest sensor and durable probe, allows you to get data in seconds. Just in about 2.5cm of water, you will get the reading immediately. Also upgraded with large backlit LCD makes reading easierEASY TO USE Our 3in1 TDS meter is an easytouse handheld digital meter to instantly check your overall water quality. It allows you to keep track of your drinking water quality at all times. A compact design with a bonus carrying case means you can take it with you wherever you need it.VERSATILEMUST HAVE If you are concerned about water quality, the TDS meter is an excellent water quality testing tool for drinking water and purification systems such as systems or DI systems, aquariums, hydroponics testing nutrients, pools and spas, commercial and industrial applications and moreINTEGRATED 3 TESTS, TDS ECTEMP Three different measurement needs can be met by one water tester. Not only convenient, but also saves time and money, absolutely a useful water test kit for your water safety. NOTE EPA suggests that the TDS of drinking water should be 500 ppmAUTO SHUTOFF 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 recordingColor WhiteMaterial plasticPackage contents1Water quality testerOnly the above package contents, other products are not included.Note Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is13 cm.