Description Description: LED Display Household Water Shower Thermometer Flow Self-Generating Electricity Temperture Meter Monitor Energy Smart Meter for Baby Care Specification: Material: ABS, PC Size: Connect to standard 1/2 inch hose or shower head Temperate Range: 5-85 Weight: 75g Thread Type: 1/2NPT Features: No batteries required - Unit harvests its power from water flow Quick and easy installation without any tools - fits handheld showerhead Drinking Water Approved MaterialsLatest technology innovated to upgrade and modernize your bathroom; Battery-free self-powered thermometer to monitor your shower temperature. As a home essential Necessary - to serve and surprise your husband, wife or children. (Especially for families with toddlers or babies) High precision 360 rotating temperature sensor waterproof LED display for better viewing. Stylish design and elegant - top quality even suitable for five-star hotel level. ( Tecboss LED Digital Shower Thermometer is an inspiring and surprising technology to give people a real-time monitor of shower temperature. It is self-powered, mainly includes hydroelectric generator, a thermal sensor and a digital LED display.With this device, you can easily monitor the water temperature in real time, and take a more pleasant shower: ) Package Include: 1 x LED Display Water Temperature Monitor 1 x Waterproof Seal with Filter 1 x Manual