The Easytem BT-031 ear thermometer features the latest technology to measure body temperature in just one second from the ear. Clinical researches have proven that the ear is an accurate site to measure body temperature because the ear drum temperature reflects the brain temperature, and can help in the quick detection of fever. With BT-031, you can take your baby's temperature quickly, easily, safely and accurately at any time. The Easytem BT-031 makes the reading by measuring the heat through infrared light. This is convenient because you only have to put the device in the ear, push the button, and check the display for a virtual instantaneous reading. Measuring the infrared heat created by the eardrum and surrounding area, BT-031 takes a total of nine different measurements in one second and displays the highest reading to guarantee accuracy. All readings are displayed in easy-to-read LCD format. A beep signals the end of the cycle and the automatic memory function holds last ten readings for easy comparison. Also, the thermometer provides readings in both Fahrenheit and Celsius. Set includes: 1 infrared thermometer, storage case, instruction manual and 1 CR2032 battery.