Reliable and stable measurement, thanks to the advantage of infrared detection system. Audible alarm if temperature is more than 38 C (100.4 F ). Memorize the last 32 temperature measurements. Three color backlit LCD digital display screen. Temperature unit can be displayed in either Celsius or Fahrenheit. Automatic power-off (<30 sec) to conserve energy. Longevity use (100,000) readings. Practical, easy to use.