Safe non-contact temperature measurement.  Laser spot indicator shows approximate center of target measurement area.  Adjustable emissivity for optimum temperature reading accuracy on a wide range of materials and surfaces. Features include the ability to display temperature in either Fahrenheit or Celsius, a vivid backlit display with excellent resolution, and an auto power off that saves battery life.  Min, Max, Difference and Average Temperature reading accuracy on a wide range of materials and surfaces. 9 Volt battery included.