LiftMaster 312HM Universal Coaxial Receiver | 315MHz, High and Normal Memory

Overview

The LiftMaster 312HM Universal Coaxial Receiver is designed to unify gate and access control setups with reliability. It supports a wide range of remotes and codes, while offering flexible power and wiring options. An external 8 ft whip antenna helps improve reception in outdoor or distant installations, and the two‑piece aluminum case with a detachable cover simplifies service and maintenance for ongoing use.

Compatibility at a glance

• Works with LiftMaster remotes and keyless entries: 371LM, 373LM, 890MAX, 893MAX, 892LT, 894LT, 361LM

Memory and security options

• High security memory stores up to 18 Enhanced Radio Technology remote controls or keyless entry codes
• Normal security memory stores up to 31 LiftMaster remote control codes of any type
• Enhanced Radio Technology rolling code and DIP switch compatibility
• Operating frequency 315MHz

Power, wiring and installation

• 12 volt DC or 18-35 volts AC/DC jumper selectable
• Momentary or constant contact, jumper selection
• External 8 ft whip antenna included

Build quality and maintenance

The two-piece aluminum case with a detachable cover provides a durable housing and easier servicing in the field. The compact form fits neatly behind gates and controllers, while delivering a clean, professional appearance.

Real-world use cases

In typical driveway or gate environments, the 312HM can act as a bridge between multiple remotes and an operator, offering a flexible upgrade path and reduced code management complexity. The 315MHz band is a familiar standard in many installations, and the memory options suggest capacity for multiple users or codes without clutter.

Why consider the 312HM

This receiver combines compatibility, security features, and configurable power options to integrate with existing LiftMaster ecosystems. It can support scenarios ranging from residential entrances to small commercial gates, all without promising specific results.