Keep your target in sight with the Vortex Eagle 6x 1,000 Yard Laser Rangefinder. The right eyepiece diopter adjusts for differences in the user's eyes, while the HCD mode allows for angle compensated ranging. The O-ring seals prevent moisture, dust and debris from penetrating for reliable performance in most environments, and the intuitive menu design is simple and clean and boasts an illuminated display.