This is the infrared thermometer used by hospitals for its convenient and hygienic operation that provides an accurate temperature reading in only one second without touching the patient. It provides readings from the forehead comparable to oral thermometers and displays the results on a backlit LCD in Fahrenheit or Celsius. In evaluations by The Hammacher Schlemmer Institute, this thermometer’s IR sensor provided more accurate temperature readings than commonly available look-alike models. It stores up to 32 readings and has an audible alarm that alerts you when a person is running a fever. Can also be used to measure the temperature of rooms, objects, and liquids, and has a 30-second automatic shut-off. Requires two AA batteries. 7 1/3" L x 4 3/4" W x 2 1/4" H. (3 oz.)