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Services Products Company

LiftMaster Model 3850
Lift Master

Elite Seres
LiftMaster® 3840
DC Motor Screw Drive with Integrated EverCharge Standby Power System

For a higher level of security and uninterrupted convenience, we offer a 3/4 HPS* DC motor screw drive garage door opener that continues working, even when the power goes out. The LiftMaster Model 3840 features the EverCharge® Standby Power System, a battery backup technology that not only powers the opener for up to 40 full cycles within a 24-hour period but continues to power vital safety functions, such as The Protector System® safety reversing system, in the event of an electrical outage. Plus, the unit is designed with 200 watt lighting, an added benefit when entering or exiting through a dark garage.

  • Fully integrated battery backup
  • Meets all UL325 requirements
  • Audible signal alerts power is out and battery is in use
  • Lifetime motor warranty

* horsepower strength with same lifting force specifications as 3/4 HP LiftMaster garage door openers

Download Specifications - PDF

763-504-5248  763-504-5248 : Call us for a FREE estimate

Auto-force feature constantly monitors garage door system and adjusts forces to temperature fluctuations, floor height, and door track movement
• High-efficiency motor delivers improved performance in extreme weather conditions
• Enclosed gear case provides continuous lubrication and protection for longer life and smoother operation
• A 6-foot power cord makes connecting to a power source easier than ever
The Smart Garage Door Opener® lets you electronically program security codes from the Multi-Function Control Panel or the powerhead
Delivers 200 watts of light with adjustable light time delay
Meets all UL325 requirments


SAFETY & SECURITY FEATURES

The Protector System® safety sensors project an invisible light beam across the garage door opening and automatically reverse the door if anything interrupts the beam while the door is going down
• Sensing technology will stop the door from closing if contact is made with a person or object
• Opener light turns on automatically when The Protector System's infared beam is broken
• Patented technology detects when a door spring breaks and triggers the motor to reverse the door to the full open position
Security+® rolling code technology assures a new code is sent every time the remote control is used
Patented PosiLock® system ensures the door remains securely locked when the garage door is closed
Manual release handle in case of power failure


WARRANTY


Lifetime motor warranty
5-year parts warranty
1-year warranty on EverCharge® Standby Power System


 

 

 
   
SALES: 763-504-5253    |    SERVICE: 612-FIX-DOOR (612-349-3667)
 
 
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