Metric Direct Reading Grade Rod Optical GRL900 20HVK automatically emitting bright green beam 40 1117 automatically emitting bright green beam that is 400% brighter the LaserLine Direct Reading Laser Grade Rod is a lightweight and versatile tool that allows setting and measuring of actual elevation no computation required matte textured tape face that provides easy visibility even under bright sunlight while protecting the markings against wear and fading Choose from two available length variations: three meter that expands from five feet and five inches up to nine feet and seven inches or five meter that is adjustable from eight feet and five inches through 15 feet and 11