Liftmaster 312HM Gate and Garage Door Opener Universal Coaxial Receiver with Security+ - 315MHz

LiftMaster 312HM Universal Receiver – 315MHz, Security 2.0+

The LiftMaster 312HM Universal Coaxial Receiver is a versatile 315MHz radio receiver compatible with Security+® rolling code and DIP switch remote controls. Designed for flexible integration with most commercial gate and garage door openers, this receiver supports multiple power options and contact types, making it ideal for both new installations and upgrades.

The unit includes a detachable external 8" coaxial whip antenna for reliable signal reception and comes housed in a 2-piece aluminum case with a removable cover for secure mounting and service access.

Key Features

• Model: 312HM (equivalent to 312HMC)

• Frequency: 315MHz

• Security+ 2.0 rolling code and DIP switch compatible

• Power Options:

  • 12VDC

  • 18–35VAC/DC (jumper selectable)

• Contact Type: Momentary or constant (jumper selectable)

• Housing: Rugged 2-piece aluminum enclosure with detachable cover

• Antenna: Includes 8" coaxial whip antenna

Memory Capacity

• High-security memory: Stores up to 15 Security+® remotes or keypads

• Standard memory: Stores up to 31 LiftMaster remote codes (any type)

Compatible Remote Controls

• 371LM – 1-button

• 372LM – 2-button

• 373LM – 3-button

• 377LM – Wireless keypad

Additional Info

• FCC certified

• 3-year limited warranty

• Designed for use with gate systems, garage door operators, and access control setups

This universal receiver provides enhanced access control, broad compatibility, and reliable RF communication in a durable, field-proven design.