ITEM NAME:Adults Bluetooth Infrared Forehead Thermometer Doorbell LCD Display for School Description: Â °C/Â °F Switchable Easily & Accurate Readings It can be.Pressing the button to switch it. Display: digital display. ALARM FUNCTION: A green light will indicate that their temperature is within a normal range, and a flashing red light and audible alarm will indicate that the person has a high temperature when the temperature is over high>37.5Â °C or 99.5Â °F.
