Avitat IR TS31 Clock 4 in 1 infrared thermometer can be used on the ear or forehead to learn ambient temperature. Readings available in 1 second with the ability to store 10 set in memory. The 4 digit LCD large display can be easily read. It weights 65 g (inc battery, stand) and measure 126x37x46 mm. Has Power/scan button, memory-recall/clock setting button. Uses 3V Lithium battery.