Easy Operation & Quick Reading: You can use our infrared thermometer to get the temperature measurement with just one button. And you only need 2 seconds measurement to get the result. Alarm TemperatureYou can set the alarm temperature of our non-contact thermometer to let you know when fever occurs. (and the default alarm temperature is 38C / 100.4F). 2 Measurement Modes & 3 Backlight Colors There are 2 measurement modes on our medical forehead thermometer, including body mode (measurement range is 86.0-109.4F (32.0-43.0C)) and surface mode (measurement range) . is 32.0 tons0 to 100C (212.0F). And 3 backlight colors (Green, Orange, Red) that change with the temperature measured in body mode. Multifunctional non-contact forehead thermometer: The medical forehead thermometer can not only measure body temperature and ensure family health, but also food temperature, room temperature,bottles.