This is the newest 3-in-1 non-contact infrared thermometer from Dikang, It can not only measure body temperature, but also surface and environmental temperature. You will experience quick readings in 1 second and simple operation. Accurate readings can be obtained without physical touching which will greatly reduce the chance of cross infection between users. The liquid crystal display of this thermometer will display one of green, orange and red according to the measurements to indicate normal, elevated, fever. Silent mode is perfect for a sleeping baby.