The Armasight Discovery 3x HD is the ultimate long range night vision observation device. Giving enhanced performance, a very ergonomic body and enabling the user to view long distances comfortably for extended periods of time, the Discovery 3x HD is the perfect tool for perimeter security, nature watching, and long range surveillance. The Armasight Discovery 3x HD Gen 2+ binoculars provide 3x magnification and image resolution of 55-72 lp/mm. It is fitted with an on-board IR illuminator and some very advanced electronic protection circuits. A rugged body that is water and shock resistant but still lightweight, the Armasight Discovery 3x HD is the ideal choice for hunting, wild-life observation, law enforcement, and defence applications. Specification: Generation: Gen 2+ HD - High Definition Resolution: 55-72 lp/mm Magnification: 3x Lens system: F1:1.65, 80 mm Field of view (°): 12.5 Focus range (m): 5 to infinity Exit pupil size (mm): 14 Diopter adjustment (dpt): +5 to - 5 Power Supply: 1 x 3V CR123A type battery Battery life (hour): 50 (3V) Infrared Illuminator: Detachable Long Range Illuminator Environmental Rating: Water and fog resistant MIL-STD-810: Complies Operating temperature (°C): -51 to +49 Dimensions (LxWxH, mm): 265 x 140 x 63 Weight (kg): 1