Topcon RL-H5A Horizontal Self-Leveling Rotary Laser Level with LS-80X Receiver 1021200-50 - The Home Depot
Topcon RL-H5B Self Leveling Horizontal Rotary Laser with Bonus EDEN Field Book, IP66 Rating Drop, Dust, Water Resistant, 400m Construction Laser, Includes LS-80L Receiver, Detector Holder, Soft Case - - Amazon.com