Topcon 1021200-15 Red Beam Self-Leveling Rotary Grade Laser Level Kit with LS-80L ReceiverDesigned for a wide variety of applications, the new RL-H5 series are the next generation of rotating lasers from Australia’s Number 1 rotating laser brand Topcon.The new RL-H5A is the replacement for Topcon's market leading RL-H4 Topcon 1021200-50 - RL-H5A DB Horizontal Laser Level (Alkaline "Dry Battery") with LS-80X Receiver