... .7FOV at distance 200yards,ft/m302/92 197/60 118/36 Focus range,yards0.25 to infinity 1.0 to infinity 1 ... a clear, sharp observation of the effect. Built a long-range infrared laser illuminator, to ensure your complete darkness, the same ... , they are in the military field but also a wide range of applications, such as coastal, border surveillance, police surveillance, anti ...