Brand 4 Binocular Night Vision Device from Night Detective®

Night Detective® BRAND binoculars utilize the finest Generation 1+ Electronic Intensifier Tubes calibrated for matching intensity. Innovative body design makes for comfortable operation and appealing look. Advanced electronic circuitry and a built-in super powerful Infrared illuminator coupled with state of the art all-glass lenses, brighten even the darkest of the nights. Two premium quality Generation 1+ Image Intensifier Tubes 4x image magnification Multicoated lenses for higher precision Built-in Super powerful Infrared illuminator Efficient circuit design Comes in its own protective shoulder bag for comfortable transportation Technical Specifications: Generation: 1+ Magnification: 4x Resolution (lp/mm): 24-30 Spectral Sensitivity: 400-900 Power Supply: 2 AA batteries (not included) According to the manufacturer, this first generation item typically uses an S-20 photo cathode (with photosensitivity of 180 - 200 mA/Im), electrostatic inversion, and electron acceleration to achieve gain. Consequently, Gen I was the first passive image intensifier. Gen I is characterized by geometric distortion, weak performance at low light levels, and blooming. Expected lifespan is 1500 hours.