Description This water thermometer is designed for you to easily control the temperature and provide your families (babies, the elderly, etc.) with a comfortable bathing environment, avoiding being exposed to too hot or too cold water. Features: Built-in power generator, self-generating power supply, requires no battery to operate. High precision temperature sensor, accurately measures water temperature ranging from 5°C to 85°C with an error of ±0.5°C. It is easy to install and to remove, without any tool; The 1/2 inch nut is compatible with most shower equipment. LED display, 360 degree rotatable, easy to observe, show the indicator light (blue/green/red) for you help choose the appropriate water temperature. Digital shower thermometer, eliminates the worry that the water is too hot or too cold before entering the water. < p>Features: Material: ABS+PC Color: Silver and Black Screw Nut: 1/2" Temperature display: °C/°F Temperature range: 5~85°C (41~185°F) Measurement accuracy: ±0.5°C