Which device allows personnel to detect heat signatures from objects and people?

The Thermal Imager is designed specifically to detect heat signatures emitted by objects and living beings. It operates by capturing infrared radiation, which is heat energy, and converting it into an image that displays varying temperatures. This capability makes Thermal Imagers invaluable in various scenarios, including search and rescue operations, military surveillance, firefighting, and security applications, as they allow users to see individuals or animals even in complete darkness or through obscured environments.

While Night Vision Goggles enhance visibility in low-light conditions by amplifying available light, they do not detect heat signatures. Binoculars are optical devices that allow for magnified viewing of distant objects without any special capability for detecting thermal energy. A Spotting Scope, similar to binoculars, provides magnification for observing distant objects but also lacks thermal sensing capabilities. Thus, the Thermal Imager stands out as the only device among the options provided that is specifically built for detecting heat signatures.