Yukon Advanced Optics
Yukon Advanced Optics is the leading designer and manufacturer of binoculars, spotting scopes, night vision devices and accessories.
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Sentinel 2.5x50 Night Vision Riflescopes (Gen. 1) Products
Yukon Night Vision Riflescope Sentinel 2.5x50

Invisible Hunter

Sentinel 2.5x50. Two color range-finding reticle.
Additional links: Manual

Sentinel 2.5x50
Sku # 26015T
The Sentinel combines traditional Yukon style (perfect design, ergonomics, reliability and easy and convenient use) with an enhanced level of functionality. The Sentinel has a high grade of water resistance (IPX4 grade, according to the standard IEC 60529) and can be operated in precipitation of high intensity. Extra tube protection provides durability towards axial load when used with the majority of popular calibers, including .300, .308 or similar. The batteries (2xAA) are placed in the battery compartment vertically thus eliminating the influence of recoil on the stability of the energy supply. The Sentinel has two scales - a horizontal scale to measure distance to the target, and a vertical one which facilitates adjustment when shooting at different distances. Initially the riflescope should be sighted at 50m. on the central cross hair. The distance is determined by putting a target with known width (0.5m) between the marks of the “>..<” type. If the target fits between the marks, you sho uld make the vertical adjustment according to the mark. So, you can make adjustments when shooting at distances of 15, 25, 50 and 100m. It is advisable to change the color of the reticle depending on the surrounding conditions. Red is best when used in clear viewing conditions, green is preferable for use when viewing is obscured. The color can be changed by a simple push of a button.
Yukon Night Vision Riflescope Sentinel 2.5x50 compare_nvrs_tactical_25x50
Model 26015T 26013T
Image Tube Generation 1 1
Magnification, x 2.5 2.5
Lens Diameter, mm 50 50
Field of View, degree 13 15
Minimum Focusing Distance, m 5
Recognition Range, m 200 200
Eye Relief, mm 45 45
Exit Pupil, mm 6
Diopter Adjustment, D ±3
Resolution, lines/mm 35 35
IR Wavelength, nm 805
Power Supply, V 3 (2xAA) 3 (2AA)
Estimated battery life without IR under +20°C/68°F, hour 24/70
Operating Temperature, °C -30°C to +40°C/-22°F to + 104°F -30 - + 40
Grade of water-resistance IPX4
Dimensions, mm 270x90x100 255x80x85