Info:  
The Nikon ProStaff 550 Laser Rangefinder is a waterproof and fogproof “vertical” style rangefinder.  It offers distance measurement ranging up to 550 yards (or 500 meters) depending upon lighting conditions and the target’s natural reflectivity, and uses a distance priority target system so that if you’re ensconced in brush it will ignore these foreground targets and display the distance of the further recognized object.  The ProStaff 550’s streamlined shape, comfortable 6x magnification, and compact 21mm objective diameter allow it to be easily carried and operated with a single hand.  A practical choice for a hunting rangefinder made by a quality sport optics company.

• Waterproof, nitrogen purged, and able to withstand being accidentally submerged

• Compact, light design enables easy one-handed operation

• Holding down the power button enables scanning mode for continuous measurements

• Excellent 18mm of eye relief for a 6×21 monocular

• ±4 Eyepiece dioptric correction

• Extreme 14-122°F temperature operating range (-10 to +50°C)

• Displays in yards or meters

On Mar-15-10 at 09:33:45 PDT, seller added the following information:
Includes carrying case … Click For More Info