4 in 1 Forehead and Ear ThermometerYou can take the temperature of child and adult forehead, ear, and also object with this non-contact thermometer. It applies to both professional use and home use. Non-contact measurementThis non-contact forehead thermometer is specially designed to take human body temperature at a distance of 0 to 3 cm (0-1.18 inches) from the forehead. Avoiding direct contact with the skin makes the measuring process safer and healthier. LCD Display, Accurate Reading and Mute ModeLCD display of this infrared forehead thermometer helps you read temperatures directly in at night without turning on the light. Fast measurement with instant reading within 1 second. Switch to silent mode and get body temperature without worrying about waking your baby. Fever Alarm and Memory FunctionThis infrared thermometer can store up to 40 temperature readings and recall them at any time time to better track changes in body temperature. And it is equipped with a fever warning system. If 37.6C T 38.0C, the orange light will be displayed, which alerts you that you may have a low fever. If 38.1C T 42.9C, the red light will display and warn you that you may have a high fever. Multi-function digital thermometerThe non-contact thermometer can take room or object or liquid temperature. It uses infrared technology and can display readings in Celsius () or Fahrenheit (). Display: Segmented LCD display, 4-color LED backlight Temperature unit: C or F, switchable Power supply: DC 3V, AAA2 Measurement range Forehead: 32C-42.9 C (89.6F-109.2F) Ears: 32C-42.9C (89.6F-109.2F) Object: 0C-100C (32F-199F) Accuracy: Ear and Forehead Mode: and-0.2C or and -0.4F Object Mode: and-1C or and-2F Display Resolution: 0.1C or F Auto power off: 10sand_1s Memory: 40 sets of temperature measurements of operating conditions Temperature: 10C-40 C (50F-104F) or Humidity: 15 percent -95 percent RH, non-condensing Atmospheric pressure: 70-106kPa Storage conditions Ambient temperature: 20 C-55C (-4F-131F) Relative humidity: 0-95 percent RH, non-condensing Atmospheric pressure: 50Kpa to 106Kpa Battery : 2 AAA, can be used for more than 3000 temperature measurements