NON-CONTACT DESIGN: This forehead thermometer is specially designed to measure human body temperature 3-5cm away from the forehead.Accurate and reliable measurement: Thanks to the infrared detection system, infrared technology is used to scan and measure the temperature of the temporal artery of the forehead. Digital thermometers make accurate and reliable measurements quickly.Comprehensive functions: practical, easy to use, point to the forehead of the body and press the scan button. For convenience, the temperature units tested can be displayed in C or F.Memory recall and fever alert: The thermometer can remember the last 32 temperature measurements. If the body temperature exceeds 38C (100.4F), the backlight will display red and an audible alarm will sound.100% SAFE AND HYGIENE: The thermometer is suitable for all ages/groups and is completely hygienic to help you safely check your body, surfaces and room temperature. In addition, it is equipped with automatic shutdown (30 seconds) to save energy.