The Yukon Sea Wolf Night Vision Monocular provides excellent viewing whether you are at home, on the water, in the desert, or deep in the jungle. This Yukon Monocular features multi-coated optics that decrease glare and improve light transmission. This waterproof monocular is compact, and it can easily fit in the palm of your hand, pocket or backpack. The Yukon Sea Wolf Night Vision Monocular can also be attached to a head mount for hands-free viewing. This Yukon Monocular has lens diameter of 42mm. It has a maximum range detection of 740 feet. The Yukon Sea Wolf Night Vision Monocular measures 6.38" long x 3.23" wide x 2.36" high and it weighs 14.82 ounces. Yukon Sea Wolf Night Vision Monocular: * Image Tube Generation: 1 * Magnification: 3x * Lens diameter: 42mm * Image Tube Resolution: 36 * Angle of View: 20 (degrees) * Diopter adjustment: 4(+or-) * Max. Range of Detection: 740 feet * IR Range: 325 feet * Waterproof: Yes * Power Supply: 3V(CR123A) * Size: 6.38" x 3.23" x 2.36" (L x W x H) * Weight: 14.82 ounces