Unmatched Strength. Smart Control. Industrial-Grade Performance.
The LiftMaster HDSL24UL is a next-generation 24VDC heavy-duty slide gate operator, built for the most demanding commercial and residential community environments. Powered by a 1.5 HP brushless DC motor, this high-performance unit handles gates up to 75 ft and 3,000 lbs with ease. Ideal for high-volume facilities, warehouses, and gated developments, the HDSL24UL delivers smooth, reliable, continuous-duty operation—even in extreme climates.
The operator comes fully equipped with safety devices, remotes, and MyQ® smart technology, offering full control, real-time alerts, and seamless facility access management.
What’s Included
- LiftMaster HDSL24UL 24VDC Slide Gate Operator
- LMRRUL Monitored Retroreflective Photo Eye (with Protective Hood)
- S505AL 5' Resistive Safety Edge
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Two FREE Remote Transmitters with Visor Clips
(Model may vary depending on availability)
Key Features
Heavy-Duty Gate Power
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High-Capacity Operation: Moves gates up to 75 feet long and 3,000 lbs.
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1.5 HP Brushless Motor: Built for continuous duty and rated for 6 million cycles.
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Custom Size 70 Gearbox: Industrial-grade oil-bath gearbox handles demanding applications.
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Variable Speed Control: Configure gate speed between 0.5 to 1 ft/sec to match site needs.
Smart Connectivity with MyQ®
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Real-Time Gate Monitoring: View gate status and receive alerts from anywhere using the MyQ® app (Wi-Fi® or cellular connection required).
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Smart Facility & Community Access: Manage multiple gates or communities remotely.
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Wireless Dual-Gate Communication: Synchronize operations between multiple gates without trenching; independently control speed for each.
Advanced Safety & UL325 Compliance
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Photo Eye & Safety Edge Included: Stops and reverses gate if obstructions are detected.
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Quick Close Feature: Prevent tailgating by immediately closing gate after vehicle passes.
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Smooth Start/Stop Motion: Reduces wear and enhances safety.
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UL325 Certified: Meets stringent standards for Classes I, II, III, and IV. Additional monitored devices may be required per installation.

Technical Specifications
Specification |
Details |
Power Source |
120/240VAC Single Phase |
Motor Type |
24VDC 1.5 HP Brushless |
Max Gate Capacity |
75 ft / 3,000 lbs |
Speed Range |
0.5 ft/sec to 1 ft/sec (variable) |
Duty Cycle |
Continuous Duty / High Cycle |
Battery Backup |
Yes (included) |
Solar Ready |
Yes |
MyQ® Compatible |
Yes (cellular or WiFi required) |
Safety Devices |
Photo Eye + Resistive Safety Edge Included |
Soft Start/Stop |
Yes |
Enclosure |
Powder-Coated, NEMA 3R Steel Cabinet |
UL Usage Classification |
Class I, II, III, IV |
Warranty |
7 Years Residential / 5 Years Commercial |

Optional Accessories (Sold Separately)
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MyQ® Internet Gateway – Required for mobile app access.
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Solar Panel Kit – For off-grid or backup power support.
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Compatibility Bridge – Required for certain HomeLink®-enabled vehicles.
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Loop Detectors, Access Panels, Keypads – Enhance site control and automation.
Frequently Asked Questions (FAQs)
Q: How large of a gate can this handle?
A: The HDSL24UL is rated for gates up to 75 feet long or 3,000 pounds in weight.
Q: Is this operator ready for solar power?
A: Yes, it is fully solar-compatible (solar panel kit sold separately).
Q: Does this unit include UL325 compliant safety equipment?
A: Yes, it includes a monitored photo eye and a 5' resistive safety edge.
Q: Is MyQ included out of the box?
A: Yes, MyQ® is integrated. You'll need a WiFi or cellular connection and the Internet Gateway to activate app features.
Q: Can this gate operator run continuously?
A: Yes, it's designed for continuous-duty, high-cycle operation, making it perfect for high-traffic facilities.
Q: Who can I contact for installation or support?
A: Call us at +15056052205 or email support@gatemasterpros.com.
Important Notes
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HomeLink® Compatibility: Requires Compatibility Bridge (sold separately) for some vehicles.
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UL325 Compliance: Additional monitored devices may be necessary depending on your installation setup.
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Mounting Hardware: Professional installation is strongly recommended for this unit.
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Image Disclaimer: Remote appearance may differ from image shown.
Product Manuals