4-in-1 functions (Ear/Forehead/Room temperature/Clock). Display screen: LCD digital display. Units switching,switches between °C and °F Fast and accurate measurement to obtain correct result instantly (about one second). Suitable for both infants and adults. It is durable advanced infrared technology,use the probe head without times limitation. Easy cleaning,just use moist cotton to clean the probe. Operate with one button,very simple to use. Every time using, the last temperature would be shown. Green back light, easy to read screen. A different beep sound would be made when a fever happen. Everybody knows fever makes people sick,high fever is even dangerous to life,you should pay attention to your and your families’ body temperature. How To Use : 1. Press the power button for one second and all symbols will be displayed on the LCD. Then the last temperature taken will be shown on the display for 2 seconds.After that, LCD will display”—” and the buzzer will keep for one time.The product is now ready to take a new measurement, and “°C or °F ” will blink on the display. 2. The thermometer can be shut down automatically or press power button to turn off.