The No Contact Tempo Infrared Thermometer is perfect for home or work. Scan yourself, your family or employees and protect others from potential virus spread. The Tempo operates at a measurement distance of 1 1/4" - 2", measures from 89.6F-109.2F (32.0C-42.9C) and a margin of error within +-0.54F. The response time is fast and the backlit digital display is easy to read. The thermometer can be set to scan a person's forehead or other surface, has a memory function and features a quick response time. 2 x AAA batteries included.