This is a great thermal monocular. - ATN OTS-XLT 160 2-8x19mm Thermal Viewer

Once I looked at my use case scenario and what else was on the market it came down to 3 options. The ATN won out because, at its price point it has a far superior sensor and processing firmware giving it a much higher definition image. I am able to see with definition out to 150yds. I can then swap to my NV for better PID. I enjoy the ATN unit mostly for its features, being a rugged monocular, high storage capacity, built in range finder, less color palettes (good thing), and a long battery life I can use it to sweep my field of view day or night and bring back helpful information as well. Truly a great addition to my kit and everyday use. the 37mm threaded filter ring on the front of the lens is also fantastic and I would highly suggest adding a UV haze filter to cut down on heat in the air (better for long range).