★★★★★
Driveway gate setup. Antenna mounted on the post, receiver in the operator box, paired six remotes for the family. Range is excellent — works from inside the house.
Liftmaster
312HM Universal Coaxial Gate & Garage Receiver
315 MHz Security+ coaxial receiver — purpose-built for gate operators and commercial garage openers. Holds up to 15 high-security or 31 normal-security codes. Two-piece aluminum case, jumper-selectable for 12 V DC or 18–35 V AC/DC.
$44.95
List $64.95
● In stock — ships next business day
🛟 Free technical support
📄 Programming & FAQ
- ModelLiftmaster 312HM
- Frequency315 MHz · Security+ ERT (Enhanced Radio Technology)
- Compatibility315 MHz Security+ remotes (purple)
- Capacity15 high-security · 31 normal-security
- Power12 V DC or 18–35 V AC/DC, jumper-selectable
- Enclosure2-piece aluminum case · coaxial antenna
In the box
- Liftmaster 312HM receiver
- Coaxial antenna
- Mounting hardware
- Programming & instruction manual
Compatibility
Confirmed-compatible remotes, openers, and typical applications. If your model isn't listed, send us a photo and we'll verify before you buy.
Compatible 315 MHz remotes
Liftmaster 370LM
371LM
372LM
373LM
374LM
Compatible keypads
Liftmaster 377LM
Typical applications
Gate operators
Commercial openers
Multi-tenant access
Not compatible
390 MHz remotes (use 412HM)
Multicode/billion-code remotes
For 315 MHz purple-button Security+ remotes only. The 312HM is the gate-and-commercial-grade counterpart to the residential 355LM — same frequency, larger capacity, ruggedized enclosure.
Programming the 312HM
Mount the antenna with at least 12 inches of clearance from metal, wire to the operator's control board, then learn each remote.
- Wire the 312HM to your gate operator or opener control board per the operator's manual. Set the power jumper to match your operator (12 V DC or 18–35 V AC/DC).
- Press the learn button on the 312HM. Choose high-security (15-code) or normal-security (31-code) memory mode per the manual.
- Press the desired button on each 315 MHz Security+ remote within the learn window.
- Repeat for each additional remote and keypad up to capacity.
High-security mode requires the receiver and remote to share a fixed install — recommended for gate operators. Normal-security mode allows more codes for high-volume access.
What customers say
★★★★★
Replaced an aging 312HM with a new one. Same form factor, jumpers configured identically, swapped in 20 minutes. Customers never noticed the changeover.