LiftMaster AELD Elite Plug-In Vehicle Loop Detector — Legacy OmniControl Systems

The LiftMaster AELD is a plug-in vehicle loop detector for approved OmniControl and other AELD-enabled controllers. LiftMaster identifies its application on SL3000UL, CSW200UL and HCT operators manufactured before 2016. It connects to a properly installed inductive loop to provide vehicle-detection information to the control system. This is the detector module, not the loop wire or a universal plug-in accessory for newer boards. Match the installed controller, production generation and required loop function before ordering.

Compatibility — Models, Versions and Exclusions

Check the Pavement Loop and the Controller Together

The detector depends on the loop and lead-in wiring as well as its own electronics. A broken conductor, poor connection or unsuitable loop installation can create detection faults that a new module will not fix. Have the installer inspect the circuit and use the manufacturer’s diagnostic indications before replacing the detector.

Identify the intended control function and the correct socket on the actual controller. A loop used to request an exit and a loop used for another operating function are not interchangeable simply because the wire is installed near the gate. Sensitivity and frequency settings should suit the loop and neighboring systems. Test with the vehicles expected at the site rather than treating a powered indicator as proof of reliable detection.

Specifications and Product Identification

Before Ordering

• Record the full operator model, manufacture date and controller reference.
• Confirm the board accepts AELD and identify the intended loop function.
• Have the loop and lead-in circuit checked for faults.
• Plan setting adjustments and a supervised vehicle-detection test after installation.

Package Contents and Separate Requirements

This listing identifies the AELD detector module. Loop wire, pavement sealant, lead-in cable, a controller and site installation are separate requirements. Confirm the current module revision and carton before ordering. A plug-in detector does not create a working loop by itself, and it does not convert a controller with a different accessory interface into an OmniControl-compatible system.

Safety Warnings — Read Before Installation or Service

• WARNING: Incorrect detection or configuration can cause unexpected gate operation. Use a qualified gate-systems installer.
• Isolate power before fitting or removing the module and keep the gate area clear during setup.
• Do not rely on an inductive vehicle loop to detect people or replace required entrapment protection.
• Verify the assigned loop response and all independent gate-safety devices before returning the entrance to normal use.

Related Products and Important Differences

• LOOPDETLM plug-in loop detector — compare the different controller application; not an automatic AELD replacement.
• LMRRUL monitored photo eye — a different protective sensing method for approved controls; compatibility must be checked separately on legacy equipment.

Frequently Asked Questions

Does AELD fit current LiftMaster boards automatically?

No. LiftMaster identifies legacy pre-2016 applications and approved AELD-enabled controllers. Check the actual board.

Is it the same as LOOPDETLM?

No interchangeable fit is established. They are different references with different controller requirements.

Does it include the buried loop?

No loop installation is promised. The detector requires a suitable external loop and lead-in wiring.

Will replacing it fix a broken loop wire?

No. The loop circuit must be repaired and tested separately.

Need Help Confirming the Right Product?

Contact Garage-DoorParts.com before ordering. Send the full equipment model, readable part labels and photographs of the installed assembly. Include the dimensions, electrical configuration or accessory details relevant to your project so the listing can be checked against the actual installation.