Designed for use in incubators this compact digital thermometer has a sealed 65mm probe on a 47cm lead. It has an operating range of 32 degrees to 40 degrees. The cell-battery (supplied) provides 6 weeks of continuous use. Thermometer can be switched off when not needed to prolong battery life. Dimensions 80mm x 40mm x 12mm thick. Probe and cable clip to side when not in use. Instruction included.