✓ FIVE SECOND READ TIME. Instant thermometer takes only five seconds to accurately detect a fever and help you determine whether you need to get some rest or are in need of some medical attention. ✓ EASY TO READ LARGE FACE LCD SCREEN. Not only is this digital thermometer accurate, it's easy to use with its large display, beeper and color bar indicator and can be used in Celsius or Fahrenheit. ✓ SAFE THERMOMETER FOR KIDS AND ADULTS. Oral thermometer for adults can also be used rectally or under the arm, making it adaptable for use as a baby thermometer and a childrens thermometer as well.