The Sightmark PVS-7 Generation III Water Proof Night Vision Scope SM15001K is a military inspired, head mounted accessory that uses both the user's eyes for superior depth perception for surveillance functions. Extended wear is provided via the head gear or helmet mount, which gives the user hands free operation. This Night Vision Monocular from the experts Sight Mark is based on the most advanced image intensifiers, with 59-64 lp/mm for a better resolution, which limits blooming. The Sightmark Night Vision PVS-7 Mountable Scope features an automatic shut-off, which turns off the unit when it is exposed to bright light sources, and an automatic brightness control that saves battery life. This SightMark Night Vision Scope is a Generation 3 night vision unit that produces higher resolution than other night vision models and gives the user more range of sight. Lightweight and waterproof, the Sightmark PVS-7 Waterproof Night Vision Unit is a must have accessory for the serious night vision enthusiast. Protected by the Sightmark Limited Lifetime Warranty and the quality that comes with the Sightmark name, the Sightmark PVS-7 Gen 3 Night-Vision Scope Kit is engineered to meet the highest requirements and standards and will keep up with the most intense user. Sightmark-Make Your Mark!