LiftMaster 813LMX Open Close Stop Garage Door Remote

The LiftMaster 813LMX is a 3-button programmable DIP switch remote designed to replace LiftMaster’s older 3-button transmitters, including the 813LM, 333LM, and 33LM models. This compact unit is ideal for users operating commercial gate operators and garage door openers across multiple frequency types.

With simple DIP switch programming, this transmitter supports Security+ 2.0, 315 MHz, and 390 MHz frequency systems, offering broad compatibility with a wide range of LiftMaster operators.

Product Highlights

• Three-button remote control with Open/Close/Stop functionality

• Compatible with LiftMaster systems using:

  • Security+ 2.0

  • 315 MHz DIP switch systems

  • 390 MHz DIP switch systems

• Replaces older remotes:

  • 813LM

  • 333LM

  • 33LM

• Straightforward DIP switch programming

• Ideal for gate operators and commercial garage doors

• Rugged design for everyday commercial use

Programming Instructions

1. Open the top cover of the remote.

2. Locate the program button to the right of the DIP switch panel.

3. Enter programming mode by pressing the program button once.

4. Press the remote button to select frequency mode:

   • Once for 813LM

   • Twice for 333LM

   • Three times for 33LM

5. Press the program button again to exit.