The Gentle Temp Thermometer is a digital tympanic thermometer designed for use with children and adults who have difficulty using traditional oral or rectal thermometers. The lightweight, slim-design thermometer operates on one touch and provides the temperature in three seconds in Fahrenheit or Centigrade; the thermometer also converts to rectal equivalent. Five separate readings are averaged for accuracy. This thermometer also features audio alert when the temperature registers, a large digital display, and automatic shut-off after one minute. A zippered case and 21 reusable, wipe-clean lens covers are incluided. POWER: Uses one lithium CRZ032 3-volt battery (included). OPTIONS: Box of 40 reusable lense covers. WARRANTY: Three-year warranty.