The reason This can be bigger than the average monocular is it's an optical zoom with as much as 30x magnification. Study a lot more underneath… The detection range is about 1300 meters. There's also a Pro Model, with even increased thermal sensitivity ( Your intended use will dictate the https://remingtonfxkxp.theideasblog.com/28655481/monocular-infrared-telescope-things-to-know-before-you-buy