How cold is it? How hot is it? Here’s a magic temperature device, the Touchless IR Thermometer. You can instantly check surface temperature in range of -27 to 428 °F (-33 to 220 °C) in just seconds. You can also switch between Fahrenheit or Celsius display. It is powered by 2 LR44 batteries which is included and measures 5″ x 0.5″. The Touchless IR Thermometer is available for 50 bucks. With this, you can test the temperature of all things around you but not for testing internal body temperature.