1-1/4 HPs Belt Drive Opener with Battery Backup and myQ Connectivity — LiftMaster's premium residential opener with ultra-quiet belt drive, built-in battery backup, 360° swivel camera, 2,000-lumen LED lighting, Posilock, and a lifetime motor and belt warranty. DOORTEC's most popular recommendation for high-use Oklahoma City garages.
Built to last and backed by a lifetime motor and belt warranty for total peace of mind.
With built-in Battery Backup, your garage door continues working — so you're never locked out when it matters most.
DC motor and reinforced belt glide the door with minimal noise — perfect for homes with living spaces near the garage.
360° camera with adjustable wide-angle and full night vision lets you see every corner of your garage — day or night.
1¼ HP* equivalent motor designed for high-use garages and harsh conditions. Built for the long haul.
2,000-lumen LED light ring brightens your entire garage from every angle — motion-activated for automatic convenience.
With the myQ app, control and monitor your garage from anywhere, anytime — open, close, schedule, and share access.
*For comparison only. DC motor lift capacity is not measured in HP.
Ensure uninterrupted access during power failures. Battery Backup keeps you in control when it matters most, for safety and peace of mind.
Oklahoma City homeowners know the reality of ice storms, spring severe weather, and summer thunderstorms that knock out power across the metro. The 6690L's internal battery backup keeps your garage door fully operational through any outage — full open and close capability without a single modification.
The 6690L's DC motor and reinforced belt drive work together to deliver smooth, reliable, powerful performance — while operating at a noise level quieter than the average dishwasher.
The steel-reinforced belt eliminates the metal-on-metal contact of a chain drive entirely. Combined with Soft Start/Stop technology, the 6690L is the quietest overhead opener we install — the right choice for garages beneath or adjacent to bedrooms and living areas.
Source: Noise Levels of Common Household Sounds [Infographic]
Only myQ gives you smart control of every access point to your home and garage, and full visibility of your perimeter, with one easy-to-use app.
Open, close, and monitor your garage from anywhere. The 6690L's 360° adjustable camera streams live 1080p video to the myQ app with auto-adjusting night vision and two-way audio. Share access with family members, enable Amazon Key for in-garage delivery, set automatic schedules, and receive real-time alerts — all without a subscription for basic features.
All specifications sourced directly from LiftMaster's official product documentation for the 6690L Premium Series.
| Motor & Drive | |
| Drive Type | Belt |
| AC / DC | DC |
| Lift Capacity | 1¼ HP equivalent — designed for high-use garages and harsh conditions* |
| Soft Start / Stop | Yes |
| Battery Backup | Yes — built-in integrated battery backup |
| Camera & Lighting | |
| Integrated Camera | Yes — 360° swivel with adjustable wide-angle and full night vision |
| LED Lighting | LED Light Ring — 2,000 Lumens, Corner-to-Corner coverage |
| Motion-Detection Light Activation | Yes — lights activate automatically when you enter |
| Security | |
| Posilock | Yes — electronically locks the door when closed |
| Remote Code Format | Security+ 3.0 — anti-burglary rolling code encryption |
| HomeLink Compatible | Yes |
| Amazon Key | Yes — in-garage delivery for Amazon Prime members |
| Smart Connectivity | |
| Smartphone Control | Yes — myQ app (iOS and Android) |
| myQ Compatibility | Yes — built-in Wi-Fi, no external hub required |
| myQ Diagnostics | Yes — integrated health monitoring |
| Warranty | |
| Motor Warranty | Lifetime |
| Belt Warranty | Lifetime |
| Parts Warranty | 5 years |
*For comparison purposes only. DC motor lift capacity is not measured in horsepower.
The 6690L ships as a complete Premium kit. DOORTEC installs all four included components and programs everything before leaving your home.
DOORTEC installs the complete 6690L system and confirms every component is working correctly before leaving. Call (405) 720-7107 to schedule.
The 6690L includes LiftMaster's full Premium-tier smart home ecosystem — myQ, 360° camera monitoring, two-way audio, voice control, and Amazon Key, all built in without a separate hub.
| myQ Platform | |
| myQ App | Free iOS and Android — open, close, monitor from anywhere |
| Live Camera View | 360° adjustable camera, 1080p, auto-adjusting night vision, streams live to myQ app |
| Two-Way Audio | Yes — speak through the opener and hear garage audio from the app |
| Real-Time Alerts | Notifications when door opens, closes, or is left open |
| Guest Access | Share timed or permanent access without codes or keys |
| myQ Diagnostics | Integrated health monitoring — helps predict maintenance needs |
| Motion Detection | Yes — motion-activated LED lighting and app alerts |
| Integrations | |
| Amazon Key | Yes — secure in-garage delivery for Amazon Prime members with live camera monitoring |
| HomeLink | Compatible with all HomeLink-equipped vehicles |
| Video Storage | Optional myQ Video Storage Subscription — 7 or 30 days of recorded video |
| Security | |
| Remote Code Format | Security+ 3.0 — backwards compatible with all LiftMaster openers since January 1997 |
| Posilock | Electronically locks the door when closed, adding physical security beyond the opener |
| Anti-Burglary Coding | Yes — rolling code, new code from billions of combinations at every activation |
LiftMaster's ultimate confidence — the 1¼ HP DC motor carries a full lifetime limited warranty.
The steel-reinforced belt drive is also covered by a lifetime warranty — total confidence in every cycle.
All mechanical parts covered for 5 years. Backed by DOORTEC's installation workmanship guarantee.
Official LiftMaster documentation sourced directly from LiftMaster's product library for the 6690L Premium Series.
Every 6690L DOORTEC installs is handled by our factory-trained technicians from initial assessment through full system testing. The 6690L's battery backup and Premium accessories require correct configuration — we handle every detail. Serving Oklahoma City, Edmond, Norman, Moore, Yukon, Midwest City, Guthrie, El Reno, and Tulsa for over 60 years.
| What's Included With DOORTEC Installation | |
| Site Assessment | We evaluate your door, tracks, springs, and ceiling clearance before configuring the 6690L rail length and belt tension correctly. |
| Complete Installation | Opener head, belt rail, safety sensors, L958W smart control panel, L993M remotes, L979M keypad, and 485LM battery — all installed by our technicians. |
| Battery Backup Setup | We confirm the 485LM battery is correctly installed and test the backup function before leaving. |
| myQ App Setup | We connect the 6690L to your Wi-Fi, configure the 360° camera, and walk you through the full myQ app, including camera view and notification settings. |
| Safety Testing | Full auto-reverse and safety sensor tests performed before we leave. |
| Homeowner Walkthrough | We walk you through every feature — remotes, keypad, myQ app, camera access, Amazon Key setup, Posilock, and scheduling. |
| DOORTEC Workmanship Guarantee | If anything isn't right after installation, we return at no charge to make it right. |
| Service Area | |
| Cities Served | Oklahoma City, Edmond, Norman, Moore, Yukon, Midwest City, Guthrie, El Reno, Tulsa and surrounding OKC metro communities. |
| Schedule | Call (405) 720-7107 or use the quote form above to schedule installation. |
The LiftMaster 6690L is the top-of-the-line overhead opener we carry at DOORTEC, and it earns that position on every front. The belt drive is genuinely quieter than any chain drive opener — a difference you notice immediately, especially if your garage is attached to or beneath a bedroom. Add battery backup for those Oklahoma ice storms and power outages, a 2,000-lumen 360° LED light ring that illuminates every corner, and a lifetime warranty on both motor and belt, and the 6690L is the most complete residential opener available.
DOORTEC has installed the 6690L and its predecessors throughout Oklahoma City, Edmond, Norman, Moore, Yukon, Midwest City, Guthrie, El Reno, and Tulsa. The 63:1 gear reduction and Soft Start/Stop mean the door moves silently every cycle. Call (405) 720-7107 for a free installation quote.
Battery backup is a feature Oklahoma City homeowners increasingly request — and for good reason. Ice storms, spring severe weather, and summer thunderstorms regularly knock out power across the OKC metro. The 6690L's integrated 485LM battery backup keeps your door functional through any outage — full open and close operation without modification. Posilock adds an additional layer of security by electronically deadbolting the door after every close.
If you're considering the 6690L, the main question is whether you need the jackshaft configuration (98022) to free up ceiling space. For standard ceilings and standard doors, the 6690L is the clear choice. For garages where every inch of ceiling matters — gyms, workshops, car lifts — the 98022 jackshaft is the answer. Call DOORTEC at (405) 720-7107 and our team will match the right opener to your specific garage at no charge.