We, just like everybody else, base our detection (along with recognition and identification) ranges off from the US Military DRI product for detection of a standard man measurement figure. There are actually high priced thermal binoculars, and after that there’s the Newcon Optik Sentinel MLRF. While these thermal binoculars are https://shanevbeeg.techionblog.com/28271343/not-known-facts-about-binocular-thermal-vision