The wall-mounted non-contact infrared thermometer can measure temperature within 1-8cm distance from forehead within 1S, reliable and accurate readings display on the screen. Celsius and Fahrenheit unit can be switched. It also features 3-color backlight alarm function. It can be wall mounted or tripod supported, and can be widely used in home, offices, hotels, shopping malls, supermarkets, schools, restaurants, rail stations, factories and more public places. Features: Non-Contact Measurement: The non-contact infrared thermometer, you only need to stand in the distance range of 1-8cm in front of the thermometer. Avoid touch skin, more healthy and safe. Accurate and Reliable: The forehead thermometer is equipped with the advanced infrared technology and high precision sensor for getting reliable and accurate readings within 1s. C and F Unit Switchable: This forehead infrared thermometer can show readings in Celsius or Fahrenheit. The measuring range: 32 C-43 C / 89.6F-109.4F. Flexible Installation: Three installation modes are supported. It can be placed on a tripod or fixed on the wall by hook or double-sided tape. Installation accessories are not included. Wide Applicability: Widely used at home or in factories, office buildings, supermarkets, restaurants, schools, rail stations and more public places. Specifications: Color: White Material: ABS Measuring Mode: Non contact Measuring Site: Forehead Measuring Distance: 1-8cm Response Time: 0.5S Measuring Range: 32 C-43 C / 89.6F-109.4F Measurement Accuracy: 0.2C Display Unit: Celsius(C) / Fahrenheit(F) Power Supply: USB DC 5V or 3 * AA Batteries (Not included) or 1 * 18650 battery (Not included) Alarm Function: 32-37.2 (Green light), 37.3-37.7 (Orange light and alarm), 37.8-43 (Red light and alarm) Memory Function: 50 sets of history temperature readings Product Size: 150 * 100 * 32mm / 5.9 * 3.9 * 1.3in Package Size: 150 * 100 * 65mm / 5.9 * 3.9 * 2.6in Package Weight: 237g / 8.4oz Package List: 1 * Thermometer 1 * USB Cable 1 * English User Manual 1 * Set of Accessories