Level the ups and downs in your quest for perfection. Built in the legacy of our venerable PinSeeker 1500, the Pro 1600 is the world's only golf laser rangefinder to compensate for the changes in elevation. Using a digital inclinometer, it determines distance based on the degree of elevation change. It doesn't just tell you how far-it tells you exactly how far to play it. So you'll never again question the range at the top of your swing.Expires Feb 16, 2011