The LED Digital Shower Thermometer can give people a real time monitor of the shower temperature. It is self powered, mainly comprises a hydro power generator, a thermal sensor, and a digital LED display. With this device, you can easily monitor the real time water temperature, and take a more enjoyable shower. - The device harvests its energy from the water flow, Quick and easy installation without any tools. fits with handheld showerhead. Materials approved for drinking water. As home essential Needed - to and surprise your husband, wife or kids. (Especially for families having toddlers or babies) High-precision temperature sensor - 360rotatable waterproof led screen for better viewing. Elegant and sleek design - premium quality even fit to all hotels level. Model:LED Water Shower Thermometer Thread Type:1/2Inch Features: Temperature Display (/) Waterproof LED Screen, 360 Rotatable CalculatesUsage TimeAutomatically Temperature Range:0-100/ 32-212 Measurement Error: 0.5/ 1 Measurement Accuracy:0.5/ 1 Timing Range:less than equal 99hours and 59min Size:81x80.6x30mm/3.19x3.17x1.18Inch Weight:75g Colour:Silver Material:ABS+PC Package Contents: 1 * Water Shower Thermometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.