Non-contact design: This forehead thermometer is specially designed to measure human body temperature at a distance of 3cm to 5cm. Accurate and reliable measurement: With the infrared detection system, use infrared technology to scan and measure the temperature of the temporary artery on the forehead. The digital thermometer can quickly take an accurate measurement andreliable. Full Functions: Convenient, easy to use, aim at the front of the body and press the scan button. For convenience, the tested temperature unit can be displayed in C or F. Memory recall and fever alarm: The body thermometer can store the last 32 temperature readings. And the backlight shows red color and audible alarm when body temperature is over 38. 100% SAFE AND HYGIENE: Safe for all ages/groups and completely hygienic, the thermometer helps you to safely check body, surface and room temperature. In addition, it is equipped with an automatic switch-off(30 seconds) to save power.