For applications involving moonless/starless nights or in environments of extreme darkness, the NVG-40 features a built in IR illuminator to provide a light source beyond the visible spectrum and allow the user to operate undetected. The NVG-40 is also well suited for extended nighttime operations thanks to the dual tube design which reduces eye strain when compared to single tube models, and enhances the users field of view.

Furthermore, the NVG-40 is equipped with bright light cut off function to protect the photosensitive imaging tube from over exposer from intense light. In addition to its advanced imaging abilities, one of the NVG-40s more notable features is its versatile mounting options. It comes with a pre-installed NVG Interface Shoe for attaching the NVG-40 to either a standard dovetail type headset or helmet mount, but also includes a bayonet/horn interface shoe to provide the user with even more mounting options. Other feature of the NVG-40 include compact composite housing for extreme durability, and the entire unit is powered by the commonly available AA battery, or a CR123A battery.
Features of the NVG-40 Night Vision Goggles. Head or helmet mountable for hands-free operation. Ergonomic, simple, easy to operate controls. Built-in Infrared illuminator and flood lens.
Utilizes single CR123A lithium or AA battery. No license Required for International. This item may be regulated for export by the U. Department of State or US Department of Commerce.

4.5" Ã- 4.6" Ã- 2.9. (x1) CR123A (3V) or (x1) AA (1.5 V).