He knelt beside the body, which was rapidly cooling, fast disappearing from Xris's infrared sight.
One of them can be replaced by a passive low-light-level night vision device or infrared sight.
Roughly life size, the chimp has hidden touch sensors, stereo hearing and infrared sight.
Darkness did not conceal the menacing figures to humans equipped with infrared sight.
None of the rifles were equipped with telescopic or infrared sights.
The infrared sight on the M-16 was good enough to identify targets 2200 meters out.
Impassively, he squinted through the illuminated infrared sight as hooded figures darted into view.
He fastened on the infrared sight.
The green glow of objects in infrared sights comes to look as normal as the bright lights of day.
The overwhelming technological advantages of the US, such as stealth aircraft and infrared sights, quickly turned the air war into a "turkey shoot".
