TOPCON 1021200-50 - RL-H5A Self-Leveling Manual Grade Alkaline Batterie Laser w/ LS-80X ReceiverThe Topcon RL H5A auto leveling laser level combines precision, versatility and value in one job site tough package. Its super fast self leveling motors are accurate to + 10 arc seconds meaning whether you're checking grade or setting batter boards you are going to be accurate the first time. Its high power 2. 4mW diode means you have a 2,600' diameter working range (with detector use) making it a great reference for machine mounted receivers. The