The PROSTAFF 7 Laser Rangefinder 6x21 with ID Technology is the latest next generation tool built for pecision, speed and consistency out to 600 yards. Incredible .1-yard display mode that contrasts best against your subject and background. Advanced ID technology compensates for various incline/decline shooting angles and provides the equivalent horizontal range to the target. The 6x multicoated optical systems boasts a huge ocular lens, long eye relief and ptimozed viewfinder display to provide the wide field of view needed for immediate subject acquisition and maximum ranging speed. Waterproof and Fogproof.