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/object/liquid temperature. It uses infrared technology and can display readings in Celsius () or Fahrenheit ().Display: Segmented LCD display, 4-color LED backlightTemperature unit: C/F, switchablePower supply: DC 3V, AAA*2Measurement rangeForehead: 32C-42.9 C (89.6F-109.2F)Ears: 32C-42.9C (89.6F-109.2F)< p>Object: 0C-100C (32F-199F)Accuracy:Ear and Forehead Mode: +-0.2C/+ -0.4FObject Mode: +-1C/+-2FDisplay Resolution: 0.1C/FAuto power off: 10s+_1sMemory: 40 sets of temperature measurementsof operating conditionsTemperature: 10C-40 C (50F-104F) / Humidity: 15%-95%RH, non-condensing Atmospheric pressure: 70-106kPaStorage conditionsAmbient temperature: 20 C-55C (-4F-131F) Relative humidity: 0-95% RH, non-condensing Atmospheric pressure: 50Kpa to 106KpaBattery : 2 * AAA, can be used for more than 3000 temperature measurements