helmet wear night vision goggles(ONV-2+/ONV-3 )

ONV-2+/ ONV-3 is ahelmet wear night vision gogglewhich can be viewed by two eyes,small in size,light in weight.Magnification can be changed by replacing different objective lens, 1x and 3x are available.It can be used as hand held Dim-light telescope.It adopts Russian Gen-super 2 and 3 image intensifier tube features an automatic shut off system that turns off the unit when exposed to an intense light source.This protects the image intensifier tube from damage and built-in IR Illuminator enables you to see in total darkness.It is primarily for military use. Specification Generation Super 2+3Magnication x 1x3x1x 3xField of view deg 4010 40 10Detective rangem 220-360600-800 240-380 800-1000Diopter adjustment deg +5/-5+5/-5Dimensionmm 183x132x58183x132x58Weight kg 500 900500 900Battery type twoAA batteriestwoAA batteriesPower supply v 2.8+/-0.82.8+/-0.8Continuous working time h 80(with IR illuminator off)40(with IR illuminator on) 80(with IR illuminator off)40(with IR illuminator on)Operating temperature range -40/+40-40/+40Relative humidity at 25 98%98%