This Non-Contact LCD Display Infrared Thermometer allows you to take body temperature, surface temperature, and ambient room temperature without touching the object or person. Equipped with a 3-color changing LCD screen, you can easily identify if an object or person has a normal, medium, or hot temperature. This thermometer has a built-in high-temperature alarm that sounds once a fever is detected. Also, it has a built-in memory that can record up to 32 readings taken at any time. With a push of the unit button, a temperature can easily be taken in Fahrenheit or Celsius.