Armasight sidekick320 - Armasight Sidekick 320 1x9.1mm Thermal Monocular

So this is a good unit if you are looking for a small handheld unit that will allow you to detect at fairly far distances. It does lack the resolution to identify outside of approx 100yrds. If this is the only thermal you have you will like it. If you have other thermal units that are only a few years old, you may not be impressed with the quality/sharpness of the image. This unit will detect heat and this will aid you when you get your other thermal scope on to the target. It is much easier to use to scan compared to using your primary optic on a rifle.