Nikon Prostaff 3i Rangefinder - Ultra-compact and lightweight the Prostaff 3i fits in a pocket or pack, and can be worn on a belt without interfering with your shot. Single button operation for fast, easy measurements. Automatically powers down after 8 seconds to reduce battery use. Nikon's legendary optics and proprietary anti-reflective coatings offer high-resolution images in most lighting conditions. Runs on one CR2 lithium battery (included). Rainproof and fogproof for use in any weather.

• Measurement Range: 8-650 yds
• Increment Reading: .1 yds
• Magnification: 6x
• Angular Field of View (Real) 7.5°
• Angular Field of View (Apparent) 43°
• Eye Relief 18.3mm
• Diopter Adjustment: +/-4°
• Power Source: 1 CR2 Lithium Battery
• Size: 4.4" x 1.4" x 2.8"
• Weight w/o Batteries: 5.6 oz
• Objective Diameter: 21mm
• Exit Pupil 3.5mm
• Tru Target Technology