A single button does the math. The Scout 1000 with ARC figures distance based on terrain angle to give you an accurate inshoots-likein distance to 1000 yards. All with a tap of a button in a vertical unit small enough to fit in your shirt pocket. Features Include: Built-in inclinometer Range: 5 - 1,000 yards Bow mode provides true horizontal distance from 5 to 99 yards Rifle mode provides bullet-drop/ holdover data in inches from 100 to 800 yards Standard SCAN mode Bulls Eye? mode displays the distance of closest object Brush? mode displays the distance of background objects Multi-coated optics Weather Resistant Built-in tripod mount.