The Redfield Raider 550 Laser Rangefinder is an ideal choice for users who wants a "best in class" rangefinder in an affordable price range. The Redfield Raider 550 Rangefinder offers an unmatched array of optical, mechanical and functional features that are commonly seen in more eXPensive rangefinders. These Redfield Raider 550 Range finders are nitrogen filled to make them waterproof, fog proof and shock proof. The Redfield Raider 550 Laser Rangefinder is covered by the Redfield Full Lifetime Warranty. All Redfield Rangefinders are built for unmatched performance and strength. Redfield is one of the leading brands of hunting optics, known for the accuracy, ruggedness and reliability of its products.