Digi-Code DC-LM3 - Liftmaster Compatible Remote Control Transmitter - 315 / 390 mhz
The Digi-Code DC-LM3 is the LiftMaster / Chamberlain style universal remote in this Digi-Code lineup. It is designed for compatible openers and receivers in the LiftMaster-family radio platform, including many LiftMaster, Chamberlain, Sears Craftsman, and Raynor products produced after 1993. The remote supports multiple common generations, including Billion Code, Security+, and Security+ 2.0 / MyQ style applications where the receiver accepts this type of universal transmitter. The three buttons allow control of up to three supported doors, gates, or receiver channels from one visor remote. This is useful when a customer has more than one compatible garage opener or a garage and gate receiver on the same property. The important caution is that older LiftMaster / Chamberlain dip-switch transmitters such as 61LM and 750CB are a different 390 MHz fixed-code family. Those should be handled with a DC-LM390 style replacement instead. For best fitment, confirm the opener model, learn-button color, frequency, and security format before upload or ordering.
Compatible With
This remote may be used with the following compatible radio systems when the receiver frequency, coding style, and programming method match:
- Compatible LiftMaster garage door openers and receivers manufactured from the 1993-on learn-button era where the receiver supports this universal remote format
- Compatible Chamberlain garage door opener and receiver systems using supported Billion Code, Security+, or Security+ 2.0 / MyQ programming
- Compatible Sears Craftsman openers in the LiftMaster / Chamberlain radio family where the learn-button/security format is supported
- Compatible Raynor openers using LiftMaster-style receiver technology and supported programming
- Systems with common LiftMaster-family learn-button colors such as green, red/orange, purple, and yellow when the remote instructions support that generation
- Up to three compatible garage door opener, gate operator, commercial door operator, or external receiver channels
- Not for older 8/9 DIP-switch 390 MHz LiftMaster 61LM, Chamberlain 750CB, or similar fixed-code receivers
Features & Specifications
| Manufacturer | Digi-Code |
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| Product Type | 3-button universal visor remote control transmitter |
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| Part Number | DC-LM3 |
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| Frequency | 315 MHz / 390 MHz |
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| Code Type | LiftMaster / Chamberlain compatible universal, including supported Billion Code, Security+, and Security+ 2.0 applications |
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| Channels / Buttons | 3 buttons / up to 3 supported receiver channels |
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| Common Application | LiftMaster, Chamberlain, Sears Craftsman, and Raynor compatible garage door and gate receiver systems |
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| Included Components | Remote transmitter, 9V battery, visor clip, and programming instructions |
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| Notes | Will not replace older 390 MHz 8/9 DIP-switch LiftMaster 61LM or Chamberlain 750CB style remotes. |
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Also Known As / Related Part Numbers
These numbers and search references are commonly associated with this remote family. Verify the exact receiver and coding format before treating a related number as a direct replacement.
- DC-LM3
- DCLM3
- DC LM3
- Digi-Code DC-LM3
- LiftMaster compatible universal remote
- Chamberlain compatible universal remote
- Sears Craftsman compatible universal remote
- Raynor compatible universal remote
- 315/390 MHz LiftMaster universal remote
- Security+ compatible remote
- Security+ 2.0 compatible remote
- MyQ compatible universal transmitter
- Billion Code compatible remote
Technician Note
Remote compatibility is controlled by the installed receiver. Many older garage door and gate operators have had receivers replaced over the years, so the opener cover or brand name may not tell the whole story. Check the receiver label, frequency, switch style, and a known working transmitter whenever possible.
Before Ordering
- Confirm the existing receiver or old remote model number before ordering.
- Match the frequency, code type, and switch or learn-button style to the installed receiver.
- Do not order by operator brand alone if the receiver may have been changed in the field.
- For multi-door setups, confirm how many channels/buttons are needed.
- Replace weak batteries and inspect the old remote case and switch settings before assuming the opener has failed.
Professional Advisory
This transmitter is for access activation only. It is not a safety device and should not be used to bypass photo eyes, safety edges, entrapment protection, or required operator controls. If the operator moves unpredictably, has damaged wiring, or has missing safety devices, have the system inspected by a qualified gate or garage door technician.
Product Q&A
What systems does the DC-LM3 work with?
It is for compatible LiftMaster, Chamberlain, Sears Craftsman, and Raynor receiver systems using supported Billion Code, Security+, or Security+ 2.0 style programming.
Will the DC-LM3 replace a 61LM or 750CB remote?
No. Older 61LM and 750CB remotes use a 390 MHz DIP-switch fixed-code format. Use a DC-LM390 style replacement for that type of system.
Can this remote control three openers?
Yes, it has three buttons and can operate up to three supported receiver channels when each button is programmed to a compatible opener or receiver.
Does this work with yellow learn-button openers?
It is commonly listed for Security+ 2.0 / MyQ style applications, including yellow learn-button systems where supported by the programming instructions.
Can it be used on a gate operator?
Yes, when the gate operator or external receiver uses a compatible LiftMaster / Chamberlain radio format. It is not a universal gate remote for every brand.
