Designed for vivid, long-distance imaging, the Sightmark® Ghost Hunter 5x60 Night Vision Monocular features a lightweight, durable polymer construction for endurance, and a 60mm objective lens that captures any-size targets in low-ambient light conditions or total darkness. Equipped with a high-power infrared illuminator, the Ghost Hunter 4x50 Night Vision Monocular delivers a bright, clear image no matter how dark the conditions and a compact body style for easy travel. The automatic shut-off feature turns the unit off when exposed to bright light sources, saving the night vision tube and ensuring years of operation. This device is field tested and approved by the North American Hunting Club. Protected by a three-year warranty on the tube and Sightmark's Limited Lifetime Warranty on the housing, the Ghost Hunter 4x50 Night Vision Monocular is engineered to meet the highest requirements and standards of the serious night vision user.