6x21 G-Force DX 1300 ARC Laser Rangefinder from Bushnell is equipped with an eye-safe IR laser that measures distances from 5 to 1300 yards, and an integrated inclinometer to measure the relative angle to a target up to 90° uphill or downhill. Designed for bow and rifle shooters, it is packed with a variety of technologies to get them precisely on target. Bushnell's proprietary Angle Range Compensation (ARC) system gives rifle hunters ballistic drop compensation information, using such variables as distance, angle, caliber and ammo load along with the appropriate hold over/under.