Super practical shower thermometer: With this water thermometer, we can shower with just the right water temperature, which is especially suitable for families with babies. High-precision monitor: The shower temperature gauge has a built-in high-precision temperature sensor, which provides a measurement range of 0~100C and an accuracy of 0.5C. Celsius/Fahrenheit display is optional. No need for batteries: The built-in small hydroelectric power new system generates current without the need for batteries or the risk of leakage. It will automatically shut down when there is no water flow. Easy to install: 1/2 inch nut, compatible with most shower equipment, easy to install without any tools.360rotating LED temperature display: The clear LED screen allows you to monitor the shower temperature in real time. 360 can be rotated for better viewing effect. Three-color indicator light: The screen displays indicator lights (blue/green/red) at the same time to help you choose the right water temperature. Memory function: Built-in memory chip to record bathing time (up to 99 hours and 59 minutes).