Element Rangefinder Optics ModuleElement Optics Rangefinder Module 1000m with Ballistics Chip The Element Optics Rangefinder Module is a compact, mountable laser rangefinder designed for streamlined use with a compatible optics setup. Unlike a conventional handheld rangefinder with an optical viewfinder, this module can be mounted and aligned with a riflescope, allowing distance readings to be accessed without switching between separate devices. With a ranging distance of 5 to 1,000