The suresign infrared thermometer measures body temperature from inside the ear or on the foreheadampnbsp it can also be used as a room temperature gauge which is helpful when measuring the temperature of a babys sleeping environmenthow to use the suresignampnbspinfrared thermometer when the system is showing the timeroom temperature display press the scanning button and the last temperature measurement will be displayedampnbsp after two beeps the system enters into the measurement modeear