How to Install and Align the LiftMaster Photoelectric Sensor Model LMRRUL for Gates

This video demonstrates how to install and align the LiftMaster photoelectric sensor model LMRRUL for gates. For more information about the LiftMaster products covered in this video, please reference the following articles: LMRRUL Instructinos: http://bit.ly/LMRRULInstructions Additional Resources: Technical Support: http://bit.ly/ChamberlainTechSupport Subscribe:    / liftmastersupport   Still need help? Contact Chamberlain Technical Support: http://bit.ly/ContactChamberlainSupport This video is intended for demonstration purposes only. The procedures demonstrated should only be performed by trained, professional installers and service technicians. Safe operation and servicing requires that you follow all instructions and safety advisories found in the manual. To locate a trained, professional installer or service technician go to LiftMaster.com/locate-a-dealer.