... systems and advanced Gen 1 image intensifier tube Our night vision NV-1 are compact and good-looking portable hand ... m 19/63 Field of view,deg 18 Focus range,m 1.5 to infinity Exit pupil diameter,mm ... W,mm/in 183×81×61 Weight,g 530 Effective DistanceDetection range,m 200/150 IR power,mw 25≤IR ... wavelength,nm 850IR effective distance,m 25Environmental DataIP standard of ...