Nikon has a complete line of optics With sleek ergonomics and feature-packed performance, Nikons PROSTAFF 7i Rangefinder pinpoints distances with 1/2-yard accuracy from 8 yds. to an amazing 1,300 yds. for more hunting confidence than ever before. True Target technology delivers different ranging modes: First Target Priority Mode and Distant Target Priority Mode. First Target Priority Mode provides the distance to the closest target among a group of targets being measured. Distant Target Priority Mode measures the distance to the fartherst target in a group - especially useful if your target is behind tall grasses or brush. The 7i also boasts Hyper Read technology for quick and stable measurement responses regardless of distance. Nikons ID Technology compensates for various incline or decline. Spot On Ballistic Match Technology helps you discover the exact aiming point at a given yardage for any ammunition or load. Bright, multicoated 6X optics with generous 18.3mm eye relief. Waterproof and fogproof, nitrogen-filled construction. Runs on one CR-2 battery (included). Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Rangefinders.