LiftMaster 423LM Three-Channel Universal Coaxial Receiver (390MHz)

LiftMaster 423LM Three-Channel Universal Coaxial Receiver (390 MHz)

The LiftMaster 423LM Three-Channel Universal Coaxial Receiver is a versatile and powerful radio control solution designed for use with a wide range of LiftMaster, Chamberlain, and Sears Craftsman gate and garage door operators. This 390 MHz receiver offers enhanced security features, flexible installation options, and compatibility with various remote control types, making it ideal for both residential and commercial applications.

Notable Features

• Three-channel design for multi-device control
• 390 MHz operating frequency (FCC certified)
• Smart Garage Door Opener electronics on each channel for fast programming
• Security+ with rotating code technology for enhanced security
• Open/close/stop functions for commercial operator applications
• Flexible power options: 18-35V AC/DC or 12V DC (selectable)
• Compatible with up to 31 transmitters in NORMAL security mode
• Supports rolling code, billion code, and dip switch remotes

Technical Specifications

• Frequency: 390 MHz
• Power Options: 18-35V AC/DC or 12V DC (selectable)
• Output Rating: 5 Amps 28V AC or DC Max.
• Channels: 3
• Memory Capacity: Up to 31 transmitters in NORMAL security mode

Applications

• Residential garage door openers
• Commercial door operators
• Gate operators
• Multi-device control systems

Compatibility

The LiftMaster 423LM is compatible with:

• LiftMaster gate and garage door operators
• Chamberlain garage door openers
• Sears Craftsman garage door openers
• Various remote control types: rolling code, billion code, and dip switch

Installation and Setup

The 423LM offers flexible installation options with its selectable power supply and coaxial antenna connection. The receiver can be easily mounted and connected to compatible LiftMaster, Chamberlain, or Sears Craftsman operators. The package includes an antenna, bell wire, and detailed instructions for a smooth setup process.

Programming

The 423LM features Smart Garage Door Opener® electronics on each channel, allowing for fast and easy programming of multiple devices. The receiver supports various programming modes to accommodate different application needs, including open/close/stop functions for commercial operators.

Security Features

• Security+ rotating code technology to prevent code grabbing
• Supports both NORMAL and HIGH security modes

Package Contents

• 1 x LiftMaster 423LM Three-Channel Universal Coaxial Receiver
• Antenna
• Bell wire
• Installation and programming instructions

Additional Information

• Also known as: 012381042340, 423LMC
• Warranty: 3-year limited warranty

The LiftMaster 423LM Three-Channel Universal Coaxial Receiver is an ideal solution for upgrading or expanding your gate or garage door operator system. With its versatile compatibility, enhanced security features, and flexible installation options, the 423LM provides reliable and secure radio control for a wide range of LiftMaster, Chamberlain, and Sears Craftsman automation systems in both residential and commercial settings.

Download Information:

• Installation / User Manual