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Ideal for large heavy gates, the RSW12U's sturdy pad mount design delivers accurate control of the gate and unsurpassed performance. Access your property like never before. With MyQ® Technology you can monitor and control your gate from anywhere and get in quickly and securely with the built-in interference eliminating Security+ 2.0™ radio. Industry-leading power management technology extends battery backup for up to 63 days* without recharging, providing greater security and reliability. No one else can offer you that peace of mind.

Elite RSW12U 12V DC Swing Gate Operator - Click to enlarge!

RSW12U 12V DC Residential / Light Commercial
Swing Gate Operator with Battery Backup


  • Battery Backup safeguards your property by providing up to 147 cycles or up to 63 days of standby power when the power is down.
  • Solar Ready Ultra-Reliable System delivers power when you need it most to operate the gate and is extremely power efficient at all other times to maximize solar performance. Home owners may qualify for 30% solar tax credit.
  • High Density UV-Resistant Polycarbonate 2-Piece Cover offers durable protection and easy access for service.
  • Powerful 12VDC Motor With Soft Start/Stop Operation extends operator and hardware life for heavy-duty gate use.
  • Gate Size rated for gates up to 16 ft. in length or weighing up to 600 lbs.

Safety and Security:

  • Security+ 2.0™ Patented Multi-Frequency Secure Radio Technology virtually eliminates interference and offers 2X the range of standard remotes so you can access your home quickly and safely.
  • The RSW12U includes a Monitored Retro-Reflective Photo Eye, to meet the UL325 Standard.
  • Safety Inputs are provided for the addition of safety reversing devices. Each entrapment point should be protected with its own device.
  • UL/cUL Listed tested to the most stringent industry guidelines.


  • MyQ Technology enables you to securely monitor and control your gate operator and houselights with your smartphone for greater peace of mind.
  • Alerts can be received as email or pop-up (push) notifications on your mobile device so that you always know the status of your gate operator.
  • MyQ Mobile App is a free download with no annual activation fee.
  • Wireless Dual-Gate Communication saves unsightly driveway scars by eliminating expensive conduit for dual-gate communication.


  • Fire Department Compliant - Selectable settings allow gate to auto open upon loss of AC power or battery depletion.
  • Bi-Part Delay - Monitors the speed and position of each wing and adjusts the speed as necessary to ensure primary gate closes last, avoiding potential damage to the gate.
  • Synchronized Close - Simultaneously closes the gates.
  • Wireless Dual-Gate Communication - Saves unsightly driveway scars by eliminating expensive conduit for dual-gate communication.
  • Plug-In Loop Detector Inputs (with optional expansion board) - Easy to install, simple to program. Eight different settings, including boost. Innovative technology eliminates crosstalk. Inputs for shadow, interrupt and exit loops.
  • Programmable Auxiliary Relays (with optional expansion board) - Two programmable relays with six settings each simplify adding additional features. Switch on/off devices at open or close limits.
  • Advanced Traffic Management Control (with optional expansion board) - Secures your property.
  • Anti Tailgate - Prevents unauthorized access. Gate will pause when closing as vehicle pulls onto interrupt loop or breaks photo beam. Once vehicle backs up, gate will continue to close.
  • Quick Close - Closes the gate immediately after a vehicle pulls off the interrupt loop.
  • One Touch Push Button Programmable Electronic Limit System - Maintains accurate gate position throughout gate travel. Maintains open and close limit position at all times, even after using manual disconnect.
  • Homelink® Compatible - Version 4 and higher.
  • Warranty - Three years.
  • Security+ 2.0™ On-Board Radio Receiver - Up to 50 remotes.


  • Power 12VDC - or solar powered
  • Accessory Power 12VDC - 500mA output Switched and unswitched power.
  • Surge - Industrial strength suppression on high and low voltage inputs.
  • Temperature Specifications - -40°F (-40C) to 140°F (60C).
  • Gate Travel Speed - 90-degree opening in 13 - 15 seconds.


  • Motor 12VDC - continuous-duty motor.
  • Operator Duty Rating - 250 cycles per day.
  • Chassis - Constructed with 1/4" gold zinc plated steel for rust prevention.
  • Worm Gear Reduction - Two commercial oil bath gear boxes with 900:1 worm gear reduction.
  • Operator Dimensions - Length: 20.0", Width: 14.82", Height: 27.69".
  • Operator Weight - 180 lbs.
Operator Includes:
  • Operator
  • Operator Arm Assembly
  • Mounting Hardware
  • Transformer
  • Installation/Safety Manual
  • Sealed 12-volt, 7 Amp Hour Battery
  • Keys (2)
  • LiftMaster 315MHz and 390MHz Receiver Module
  • Control Board with Surge Suppressor Terminal
  • Monitored Retro-Reflective Photo Eye
  • Caution Signs
  • Warranty Card
  • Picture of included parts
Other Components You May Need:
  • Slave Operator - You will need another operator for master/slave installations (double gates), MSWIRE12GA6C is required to connect the two operators.
  • Transmitters - You will need a transmitter if you desire to open your gate with a remote. Any LiftMaster Security+ 2.0 315MHz or 390MHz compatible transmitter will work. You can find transmitters here.
  • Low Voltage Wire - This wire will be used between the transformer and control board. 14 gauge wire should be used for distances up to 1000'. For distances of 200' or less you can use 18 gauge wire. You will need to bury these wires in conduit. You can find this wire here. Direct burial landscape cable matching these specifications can also be used without conduit (available at most garden centers).
  • Solar Panels - Solar panels can be can be used in remote areas. Solar panels can be found here.
  • Accessories - More accessories can be found here. Included are loop detectors, key switches, photo eyes, telephone entry, intercoms, electric locks, keypads and much more.
  • Heater Kit - Heater kit is available for extreme cold weather conditions, installed at factory, call for pricing.
  • Read the RSW12VDC manual for more information on the requirements for your particular application.
More Information (PDF):

DC Gate Operators powered by solar panels
qualify for the Federal Solar Tax Credit
Click for information!

Prices and Ordering:
RSW12U LiftMaster Elite Series RSW12U 12 Volt Swing Gate Operator with Battery Backup $ Add To Cart
MSWIRE12GA6C LiftMaster Dual Gate Connecting Kit (40 ft. wire)
(order 2 operators and this kit for double gate applications)
$ Add To Cart

Compatible Security+ 2.0 Transmitters


Click to enlarge!
Typical RSW12VDC Single Swing Gate Installation
(click to enlarge)

Click to enlarge!
Typical RSW12VDC Double Swing Gate Installation
(click to enlarge)

LiftMaster products listed here and other related pages are registered trademarks of The Chamberlain Group, Inc.