DoD Security Services (Call) Center Functions Transition to DMDC Contact Center. On June 1, 2013, the DoD Security Services (Call) Center (DSS Call Center) transferred various customer service functions to the Defense Manpower Data Center (DMDC) Contact Center.
Depending on the make and model, an infrared thermometer is actually reading the temperature above, below or around where you see the laser. Some infrared thermometers, like the IR Pro Series and the IR-IND are equipped with two lasers.
Infrared (IR) is an invisible radiant energy, electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum at 700 nanometers (frequency 430 THz) to 1000000 nm (300 GHz) (although people can see infrared up to at least 1050 nm in experiments).