Non-contact Forehead IR Thermometer is specially designed to take the body temperature of a person (or animal) regardless of room temperature. Depending on various skin types and thickness, there may be temperature difference. Features Non-contact measurement 3-5cm measurement distance clean and safe Accurate @.2C(0.4T) Three colour backlight Easy read in the dark Easy understand the temperature Memory last measurement Fever alarm Humanized default Fever alarm when the temperature Over 38'C Multi-Function Body temperature, Milk temperature, water temperature, room temperature, Object surface temperature. Imported sensor c/�°F temp shift Body and Object mode Automatic off within 20s