Openers
 
           Liftmaster 3850
           DC Motor Belt Drive with Integrated EverCharge Standby Power System
Liftmaster 3580

Specifications


Now when the power goes out, your garage door opener will still work. The LiftMaster® 3850 is the only 3/4 HPS* professionally installed opener with a fully-integrated standby power system. It will operate the garage door opener for 40 cycles within a 24-hour period, and recharges automatically when the power comes back on; an audible signal tells you when the power is out and the EverCharge® Standby Power System is in use. The safety and security features will continue to operate as well, ensuring your family is protected in a power failure. The opener also features smooth start and smooth stop to reduce the noise of the garage door as it opens and closes – perfect for homes with a room above the garage.

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

  • +Auto-force feature constantly monitors garage door system and adjusts forces to temperature fluctuations, floor height, and door track movement 
  • +The Smart Garage Door Opener® lets you electronically program security codes from the Smart Control Panel™ or the powerhead
  • +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
  • +Delivers 200 watts of light with adjustable light time delay
  • +Meets all UL325 requirements

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