Non-contact and fast measurement: Forehead thermometer can measure temperature in 1 second without physical contact. The infrared thermometer adopts one-button measurement design, which is quick and convenient. 2 in 1 Mode: The professional forehead thermometer includes forehead and surface modes. Besides measuring human body temperature, it can also measure ambient temperature, water temperature, or object temperature. Multi-functional adult thermometer can meet different needs. Audible and visual fever warning: The infrared thermometer has an audible alarm, and you can set the temperature alarm value. The forehead thermometer uses a three-color backlight design. In body mode, it can indicate fever status through different backlight colors: Green (32.0-37.4°C), Orange (37.5-37.9°C), Red (38.0-43.0°C). Professional and Accurate: The infrared thermometer uses infrared technology to quickly and accurately measure data. You can switch between Celsius and Fahrenheit modes as needed. The accuracy of the forehead thermometer is ±0.2°C / ±0.3°F. Memory Function and Auto Power Off: The adult thermometer has a memory function and can store 99 sets of temperature data (for forehead mode), which helps you keep track of readings. The infrared thermometer will automatically turn off after 15 seconds of inactivity, helping to save energy.