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Commercial Dock Door Operator

  • For full vertical or high-lift sectional commercial and dock doors.
  • LMi5 Sensor Connection Box monitors up to 5 external sensors around the dock door with myQ® Facility.
  • Opens 50% faster in the up direction.
  • Easily connect the operator to the facility's network with built-in Wi-Fi®.
  • Annual subscription to myQ Facility, first three months included.


Commercial Power

UL Listed

Reduce Maintenance

Extend hardware life and reduce maintenance with smooth start/stop operation.

Current Rating

120V AC, 60Hz Voltage, 2.0A Current Rating

Ensure Access

Ensure access to the facility when the power's out by adding Battery Backup (485LM, optional accessory).

Business Safety and Security

Security+ 2.0®

Safeguard facility access with Security + 2.0 technology, opening for registered devices only.

Safety Sensors

Protect people and vehicles with safety sensors and accessories that stop the door from closing on obstructions.

Safety Standards

Meets UL 325 Safety Standards.

Business Connectivity

Monitor and Control
myQ Smart Facility Access is a cloud-based software solution that delivers real-time data and analytics to a commercial facility.
myQ Dock Management
Analyze the load, turn and dwell time at each dock in the facility and make data-driven decisions that allow you to maintain insight from the perimeter to the dock space.
Real-time Alerts
Stay up-to-date and in control of facility access points with real-time notifications to help improve efficiency and productivity while reducing expenses.


  • HomeLink® Compatible
    Compatibility Bridge™ (not included) necessary for certain vehicles. Visit bridge.liftmaster.com to find out if a Bridge is needed.
    HomeLink® is a registered trademark of Gentex Corporation.

Installation & Support

info California Residents: Proposition 65 WARNING