US Patent 9062439 Temperature displaying device for faucet

A temperature displaying device for faucets or showerheads includes a pipe, a control unit, a temperature sensing unit coupled to the pipe, a display unit, a sound alert unit, and a power supply module. The pipe is connected to a water outlet end of a faucet or showerhead or disposed inside a tube of the faucet. The temperature sensing unit senses temperature of water running through the pipe and feeds back a sensing signal to the control unit, allowing the control unit to drive the display unit to display water temperature and drive the sound alert unit to give a sound alert. Accordingly, the temperature displaying device for faucets or showerheads displays water temperature and gives an alert in response to high water temperature.