The Sightmark® Ghost Hunter 4x50 Night Vision Monocular features a lightweight, durable polymer construction, built for endurance, and a 4x magnification that lends itself well to medium-range observation. 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. 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. Its infrared illuminator catches vivid imaging in low-ambient light conditions or total darkness. 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.

Generation 1
Tube Type EP33-U
Photocathode Type S25 multi-alkaline photocathode
Photocathode, Useful Diameter 24 mm
Photocathode, Integral Sensitivity, typical 200
Resolution 36 lines per mm
Detection Range, Max for an Object Measuring 1.7x0.5 m in Natural Night Conditions 180 / 197 m/yd
Magnification 4 x
Diameter, Objective Lens 50 mm
Field of View 15 degrees
Field of View 26 m @100m
Field of View 78 ft @100yd
Distance, Minimum Focusing Distance 3.2 / 1 ft/m
Eye Relief, mm 12 mm
Diopter Adjustment ±5
Power Supply 3 V
Battery Type 2x AA
Battery Life, (with IR), hour 20 hours
Battery Life, (w/out IR), hour 72 hours
Intensity, IR illuminator power 75 mW
IR Wavelenght, nm 805 nm
Material, Lens glass
Body Material glass filled nylon composite
Tripod Mount, inch 1/4 in
Operating Temp,�F/�C -4 to 104 / -20 to 40 F/C
Nitrogen Purged no
IP Standard IPX3 (weatherproof)
Length 7.28 / 185 in/mm
Width 2.36 / 60 in/mm
Height 3.27 / 83 in/mm
Weight, (w/ battery) ,oz. 14.1 oz