The Oricom Digital Crocodile Bath and Room Thermometer displays accurate temperature reading of bath water or your baby’s room. Its LED light illuminates when water temperature is 39°C or over and displays water temperature 0°C °to 50°C. Includes an easy 'tap' to turn on operation and automatic switch-off after one hour. Its fun and easy to use and floats in water. Requires a Lithium CR2032 battery supplied.