Ultra-Practical Shower Thermometer: Thermometer for water temperature, Digital shower thermometer, designed with LED screen to help you monitor water temperature in real time so you can always take shower with just right water temperature, which is especially good for babies and the seniors. Also, it uses water pressure to generate current, no battery needed. Compatible with most of the shower equipments. Easy Installation Digital Water Thermometer: 1/2 inch nut, compatible with most of the shower equipments, easy to install without any tool needed. 360 Rotating LED Temperature Display: clear LED screen enables you to monitor the shower temperature in real time. 360 rotatable for better viewing. No Battery Needed: built-in small-scale hydro power system to generate current, no battery needed or power leakage risk. It will automatically turn off after no water flow. High Precision Monitor: built-in high precision temperature sensor, providing 5~85C measurement range and 0.5C accuracy.with this thermometer, we can take shower with just right water temperature, especially suitable for the family with babies.