... and advanced Gen 1 image intensifier tube Our night vision NV-1 are compact and good-looking portable ... hand held night vision devices.By utilizing their high magnification,excellent ... ) for RG-55Battery life IR on,hour Up to 20 Battery life IR off,hour Up to 60 ... Effective DistanceDetection range,m 200/150 IR power,mw 25≤IR wavelength,nm 850IR effective distance,m ...