Fast and Non-contact MeasurementThe forehead thermometer can get the body temperature reading in one second while keeping a distance of 3-5 cm(1.2-2 inches) from the forehead of the human body, which can not only accurately and quickly measure the body temperature, but also avoid risks. Fever Warning and Three-color Display: The forehead thermometer has an audible alarm. When the temperature is abnormal, a buzzer will sound to remind you. And in body mode, the forehead thermometer has three different background colors to indicate what stage your temperature is in, so you can better monitor your health: Green(32.0-37), Orange(37.4-38), Red(38.1-39.1). 2 in 1 mode: The adult forehead thermometer can be used to measure the body temperature of babies, children and adults, as well as to measure the temperature of the surface of the room, water, milk and other objects. One instrument can meet your multiple demand. Note: The data are all measured manually, please allow an error of 1-3 cm due to differences in light and display, there may be some color differences, please refer to the actual item received.