Untitled document Battle tested NVS 7 goggles can address any Military or Law Enforcement ability to observe the terrain under the darkest conditions. The goggles of this model are in service with over 40 militaries throughout the world. The large variety of available models allows the user to choose a variant that would satisfy his particular needs. Waterproof, lightweight, and compact - this advanced system is also the most affordable offer on the world market. NVS 7-2/HD and NVS7-2/XT provide an unprecedented quality equivalent to 3rd generation models at much lower price. NVS 7-3/HD is the first mass production 3rd generation goggles without US components. Thus, no US export restricting rules are in effect with this model. Specifications | NVS 7-2/HD | Generation | 2+ | Image Intensifier Tube modification (IIT) | NC064322 | Resolution, min, Lp/mm | 45-57 | Photocatode sensitivity | 500-600 | Photocatode operating diameter | 18 mm | Photocatode type | Multialkali S-25 | Signal – to – noise ratio, min | 16-20 | Allowed black dots, Zone 1, 2, 3 max. | 1, 2, 2 | Tube Life | Min. 10 000 hours | Resistance to external mechanical shocks | 3 000 m/s (300 g) | Magnification | 1x | Field of view | 40° | Dioptric correction | ±5 | Objective F number | 1.2 | Interpipillary distance, mm | 57-73 | Exit pupil diameter, mm | 25 | Focus range, m | 0.25 | Power supply | 1 AA battery or 1 CR123 battery | Battery life, hours | Over 80 (Without I/R)Over 30 (With I/R) | Low battery indicator | yes | I/R ON indicator | yes | Ambient temperature range | -40 to +55 °C | Waterproof 2 m, 2 hours or up to 20 m (optional) | yes | Dimensions, mm | 150 x 120 x 55 | Weight, kg | 0.480 kg | |