LiftMaster Model ATSW

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Advanced Trolley System Light-Duty Trolley Operator with Built-in Wi-Fi


Dual-rated for residential and commercial doors with light-duty cycle requirements. Ideal for use in Pole Barns and similar structures for storage and manufacturing.



  • myQ® technology enables monitoring and control of the property operator through a mobile app.
  • Built-in Wi-Fi for simple operator internet connection
  • Real-time alerts indicate the status of doors via email or push notifications



  • Motor vibration isolation system (MVIS) for smoother and quieter operation.
  • Security+ 2.0 safeguards property access; tri-band rolling code technology, operating for programmed devices only.
  • The Protector System® auto-reverses the door if an entrapment protection device detects and obstruction.



  • High-starting torque motor with overload protection.
  • Rated load 600 inch-pounds per second to satisfy a wide range of light-duty cycle applications
  • 1 year warranty


Optional Accessories

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    877LM Wireless Keyless Entry System

    Open or close your garage door without using a remote control or key. This wireless keyless entry system opens the door by a private 4-digit code you program directly into the unit.

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    877MAX Wireless Keyless Entry

    Open or close the garage door instantly with a private 4-digit code.

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    827LM Remote LED Light

    Operates automatically with the 8500W opener and words with the MyQ App.

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    893MAX 3-Button Remote Control

    Compatible with all LiftMaster® garage door openers manufactured since January 1993, and all 315MHz LiftMaster and ELITE® gate operators

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