Feature: Precise non-contact measurement Built-in laser pointer 2 temperature units for conversion: Fahrenheit or Celsius, long press /'/'MODE/'/' more than 5s. Measurement modes selection for various needs conveniently. Body temperature measurement: aiming towards the forehead with the distance of 1-15cm. Different backlight color for different temperature range under BODY mode. Object temperature measurement: measuring the surface temperature of an object, baby bath water temperature or milk temperature, etc. Automatic selection range and display resolution 0.1C/0.1F. Automatic data hold function and auto power off function. Selection for buzzer; set alarm value(the alarm default value is 38C/100.4F). Backlight Color Description(ONLY BODY MODE): Green backlight: ''LO'' symbol (43C), buzzer beeps ten times