A roe deer while in the middle of the night at 82 meters. Pitch black outside, with a few fog from the sphere. With 4X magnification , the detection vary as many as hundreds yards, along with the recognition distance as much as 260 yards. Wonderful Tool for Night Looking. https://damienostsq.blogpayz.com/28292735/the-smart-trick-of-handheld-thermal-monocular-that-nobody-is-discussing