Chamberlain LiftMaster Elite Series 3840

$349.00 Released January, 2007

Product Shot 1The Chamberlain LiftMaster Elite Series 3840 is one of LifeMaster Elite Series garage openers released in 2007. Featured among all five is a Premium Remote Control and a Smart Control Panel with an LCD screen that tracks the time, temperature, and garage status.

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In particular, the Series 3840 model hosts a ¾ HPS DC Motor Screw Drive coupled with an EverCharge Standby Power System. As well as providing a long-term opening solution, the unit also is capable of being used 40 times during a power outage, after which it’ll need to be recharged. Signature though is the unit’s maintenance-free rail system that is self-lubricating and designed to run without problems even in temperature temperatures.


  • ¾ HPS DC Motor Screw Drive
  • EverCharge Standby Power System
  • Maintenace-Free Rail System
  • Auto-Force Functionality
  • Smart Garage Door Opener
  • Backlight/Nightlight LCD Display
  • Status Messages based on Opener’s Sensors
  • Enclosed Gear Case
  • 6’ Power Cord
  • 200W Lighting System
  • Protector System Safety Sensors
  • Security+ Rolling Code Technology
  • PosiLock System
  • Manual Release
  • Garage Door Monitor + Remote Display
  • Laser Garage Parking Assist
  • Lifetime Motor and Belt Warranty
  • 5-Year Parts Warranty
  • 1-Year Warranty Standby Power System

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