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  Home >
Gate Operators & Accessories
 > Residential Garage Door Openers >

  Liftmaster 3840 Elite Series DC Motor Screw Drive with EverCharge Standby Power System (HEAD UNIT ONLY NO RAILS)
  Liftmaster model 3840 garage door motor
liftmaster 3840
  
Our Price: $266.99


Product Code: G38401

Description
 
Liftmaster 3840 Elite Series DC Motor Screw Drive with EverCharge Standby Power System (HEAD UNIT, SENSOR EYES AND ONE REMOTE ONLY.  ** NO RAILS**)
 
Features
  • EverCharge Standby Power System Features:

  • 12VDC battery is always charged and ready - no additional outlets are needed
  • Simple installation - simply open the access door behind the light lens and slip the battery in
  • Alerts you when in use - an audible signal tells you when the standby power system is operating
  • Safety and security features still operate - ensures your family is still protected in a power failure
  • Backup power will operate the garage door opener for 40 full cycles within a 24-hour period* (fully charged batteries at 72º F)
  • Standard Features:

  • Ultra-quiet 3/4 HPS* DC motor with screw drive system
  • Enclosed gear case provides continous lubrication for longer life and smoother operation
  • Galvanized steel rail, steel screw, and plastic support insert
  • Push button limit settings/automatic force sensing
  • Includes The Smart Garage Door Opener - lets you electronically program security codes from the Smart Control Panel or the powerhead
  • Quick-Connect terminals for faster wire installation
  • 200 watts of light with adjustable light time delay; dual non-yellowing hinged light lens for easy bulb replacement
  • 6-foot power cord makes connecting to a power source easier than ever; ideal for vaulted ceilings
  • * 3/4 HPS is defined as horsepower strength. 3/4 HPS has the same lifting force specifications as 3/4 HP LiftMaster garage door openers
  • Included Accessories:

  • Premium Remote Control
  • Smart Control Panel
  • EverCharge Standby Power System
  • Safety Features:

  • Includes The Protector System - projects an invisible light beam across the garage door opening and automatically reverses the door if anything interrupts the beam while door is going down
  • Equipped with PosiLock - stops intruders by securely locking the garage door when it is down
  • Manual release handle in case of power failure
  • Warranty:

  • Lifetime motor
  • 5-year parts warranty
  • 1-year battery warranty

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