This Digital Bath & Room Thermometer has been developed to be used both in the bath & for room temperature ensuring you babies are kept at the right temperature all the time. It is fast & simple to use. Can be used as a bath thermometer that will float in the water & the electronic probe in the shaft gauges the temperature at the hottest point of the water. When used as a room thermometer, temperature readings are produced in just a few seconds Designed so baby can also play with it safely in the bath. Meets safety requirements & accurately reads in both environments Runs on two LR44 type lithium batteries supplied