Newcon LRM-1500M Laser Range Finder Monocular | 1,640-yard rangeNewcon LRM 1500M Laser Range Finder Monocular 1,640 yard range Newcon Optik's LRM 1500M Laser Range Finder Monocular provides highly accurate distance measurements to targets that are up to 1,640 yards away. Laser rangefinders work by flashing invisible, eye safe laser pulses at targets, then recording the time that it takes the reflected light to return. Using a time of flight algorithm rangefinders like the LRM 1500M can easily calculate distances