The Braun ThermoScan Ear Thermometer, model IRT 4520, is a tympanic thermometer designed for home use. This digital thermometer measures body temperature within seconds. When measurement is complete, a light goes on and the thermometer beeps. Results are shown on a liquid crystal display (LCD). Temperatures can be measured in a range of 34 to 42.2 degrees Centigrade or 93.2 to 108.0 degrees Fahrenheit. Other features include a soft, flexible tip; auto turn-off after one minute; and an 8-temperature memory storage capacity. The thermometer comes with a protective case and 21 disposable lens filters. POWER: Uses two double-A batteries (included). COLOR: Blue. WARRANTY: Limited three-year warranty.