Features: [Water Flow Power Generation]The water temperature meter adopts the water flow power generation technology, does not need to use batteries, built-in water flow generator, only need to have water flow can produce current. [Automatic Switch]There is a temperature sensor in the tube of the water thermometer, open the water flow can display the current water temperature, close the water flow will automatically shut down. [360 Display]The LED display of this water thermometer can rotate 360, no matter what position, any direction you can directly face the screen, more convenient to observe the water temperature. [Easy Installation]This thermometer can be installed without any other tools. Built-in waterproof gasket, manual tightening, no need to ask. [Strong Compatibility]The connection port of the water temperature gauge adopts the 4-point screw port of international standards, which can be adapted to most shower equipment.