About this item: Hello, dear customers, We upgraded the main internal components to be more timely and accurate, upgraded the sealing materials to avoid water leakage, and upgraded the packaging. You will immediately get a better and trouble free newproduct Ultra-Practical Water Bath Shower Thermometer: with this thermometer, we can take shower with just right water temperature, especially suitable for the family with babies. Built-in memory chip, keeping track of bathing time (up to 99 hours and 59 minutes). High Precision Monitor: Built-in high precision temperature sensor, providing 0~100C or 41~185 measurement range and 0.5C accuracy. Celsius/ Fahrenheit display selectable. Easy Installation: 1/2 inch nut, compatible with most of the shower equipment, easy to install without any tool needed. No Battery Needed: Built-in small-scale hydro power system to generate current, no battery needed or no power leakage risk. 360 Rotating LED Temperature Display: Clear LED screen enables you to monitor the shower temperature in real time.The screen also displays the indicator light (3-Color Indicator Light-blue/ green/ red) to help you choose the suitable water temperature.