A precision laser rangefinder with 1300-yard ranging capacity.The ProStaff 7i 6 x 21 Laser Rangefinder gets you on target with speed, precision and consistency – a necessity to effectively use Nikon's BDC reticles and Spot On Ballistic Match Technology. This rangefinder features 8-1300 yard ranging capability, Multilayer coated optics, waterproof ruggedness, pocket-sized portability, long eye relief, Tru-Target Priority System and Nikon's ID (Incline/Decline) Technology for horizontal and actual distance display.Key FeaturesID (Incline/Decline) Technology: Nikon's advanced ID (Incline/Decline) Technology provides the horizontal distance to the target, even when ranging at various incline or decline shooting angles up to an incredible +/- 89 degrees (nearly vertical up or down)Single Button Operation: For fast, easy measurements, the single button operation of the ProStaff 7i Laser Rangefinder is simple to use and automatically powers down after eight seconds to reduce battery use.Easy-To-View Display: The uncluttered screen displays ranges with Nikon's trademark speed and accuracy in .1-yard intervals out to 1,000 yards, 1-yard increments over 1,000 yards.Ultra-Compact Size: The ProStaff 7i Laser Rangefinder conveniently fits in a pocket or a pack, and can be worn on a belt without interfering with your shot. Comfortable to carry and use all day long in any of the toughest situations your hunt can present.Consistency When It Matters: The ProStaff 7i Laser Rangefinder gets you on target with precision, speed and consistency – a necessity to effectively use Nikon's BDC Reticles and Spot On Ballistic Match Technology.Long Eye Relief: Incredible 18.3mm eye relief allows for easy, comfortable viewing.Waterproof/Fogproof: Made to withstand even the worst conditions, the ProStaff 7i is waterproof/fogproof and the battery chamber is water resistant.What it DoesMeasurement Range: 8 - 1300 ydsIncrement Reading: .1 ydsMagnification: 6 xAngular Field of View (Real): 7.5 Viewfinder Display: meters/yardsEye Relief: 18.3 mmDiopter Adjustment +/- 4 Weight w/o Batteries: 6.2 ozObjective Diameter: 21