DESC: Yukon Advanced Optics, a world wide leader in the development and distribution of night vision and sporting optics, stay true to their one simple mission.Yukon developed the CS1 Multitask Night Vision Monocular. This is a no-nonsense NVD with specifications to be reckoned with. Inside you'll find a high quality 3rd generation intensifier that delivers 57-64 lp/mm of resolution. Third generation tubes last longer, provide higher levels of resolution, and are less affected by bright light sources then their earlier counterparts. This unit is waterproof and rubber armored, so don't worry about the weather or climate. You're grip will be secure and your line of sight will be clear, regardless of the conditions you have to work in. Versatility is a key component of the NVMT line, and the CS1 is no exception.