Digital shower thermometer with LED screen that helps you monitor the water temperature in real time so you can always shower with the right water temperature, which is especially good for babies and seniors. In addition, it uses water pressure to generate electricity, no batteries required. Compatible with most shower devices. Order this home essential now Features: Extremely practical shower thermometer: with this thermometer we can take a shower with the right water temperature, especially suitable for a family with children. Easy installation: 1/2 inch nut, compatible with most shower equipments, easy to install without tools. No batteries: built-in small hydroelectric system to generate electricity, no batteries or risk of power leakage. It will turn off automatically when no water flow. 360 rotatable LED display: The clear LED screen allows you to monitor the shower temperature in real time. 360 swivel for better viewing. High-precision monitor: Built-in high-precision temperature sensor, providing a measuring range of 5 ~ 85 C and accuracy of 0.5 C. Specifications: Material: ABS + PC Screw Nut Size: 1/2 inch Temperature range: 5 ~ 85 C Measurement error: 0.5 C Measurement accuracy: 0.5 C Item Size: 8 * 3 * 8.5cm / 3.1 * 1.2 * 3.3in Item Weight: 78g / 2.8oz Package size: 10.7 * 10 * 3.3cm / 4.2 * 3.9 * 1.3in Package weight: 120g / 4.2oz