The Diablo Octane Rangefinder provides quick and accurate distance measurement up to 550 yards (500 meters) and features First Target Priority Mode
- 6x Monocular; Nikon's first target priority mode; Includes 3 volt CR2 lithium battery
- Waterproof - filled with nitrogen gas, sealed with O-rings (except battery chamber)
- Long Eye Relief and folding rubber eyecup for eyeglass-wearer easy viewing
- Carabiner built-in for ease of access with all walking bags and tour bags
- Long Eye Relief and folding rubber eyecup for eyeglass-wearer easy viewing