
No Battery Needed: Built-in small-scale hydroelectric system to generate power, no battery needed or risk of power leakage. It will automatically shut off after no water flow. 360° Rotating LED Temperature Display: The transparent LED display allows you to test the shower temperature in real time. 360°rotation for better viewing. High-precision tester: Built-in high-precision temperature sensor, providing a measuring range of 0~100°C and an accuracy of ±0.5°C. Celsius/Fahrenheit display selectable. Easy installation: 1/2 inch nut, compatible with most shower equipment, easy to install without any tools required. Ultra-practical shower thermometer: With this thermometer, we can take a shower with just the water temperature, especially suitable for families with babies.