The thermometer is an FDA 510K cleared, non-contact, forehead thermometer. It features an operating range of 0.6 to 2 inches and does not need to be pressed directly onto the skin. The R1B1 is both accurate and fast, performing scans in approximately one second, with ±0.4°F accuracy between 95 to 107.6°F. In higher volume settings, it can keep lines moving, and do so with dependable results. It also contains internal memory for 32 measurements. Powered by AAA batteries.