The cooled infrared camera core is the most sensitive to detect the slightest temperature difference between objects, it's a wise choice, especially when surveillance applications require long focal length lenses.
Let’s say 5km or greater, thermal imaging systems based on cooled cameras can quickly become more cost-effective. Even though the cost of a cooled camera core is much higher than an uncooled core, the system cost (core plus lens) for uncooled surpasses cooled system cost at a focal length on the order of 350mm.
high-performance thermal imager.
optimized for long-range surveillance &tracking in mobile systems or field installations.
operating in the 3-5µm wave band, in full snapshot mode.
Incorporates a 640x512 pixels, 15µm pitch In Sb focal plane array.
This camera incorporates a sensitive In Sb focal plane array sensor,
state-of-the-art 14-bit digital electronics, and motorized optics, in a compact mechanical base.