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.
Thermographic camera - Theory of operation. 1  Infrared energy is just one part of the electromagnetic spectrum, which encompasses radiation from gamma rays, x-rays, ultra violet, a thin region of visible light, infrared, terahertz waves, microwaves, and radio waves.