• The heart of the Formula I® drive system is its revolutionary belt, quiet as a whisper, tough as a steel-belted tire.
• Premium multi-function control panel, mounts on the wall to control your garage door
  and turns opener lights on and off from inside garage. Capable of locking out all outside radio signals while you're away.
• Includes an adjustable light timer and an illuminated oversized pushbutton for convenience. Includes 1 Security plus 3-button remote control. With rolling code technology , you are assured a new code with every use. Every time you push the button, the code automatically rolls over to anyone of over 100-billion new codes, never to be repeated. Operates up to three openers.
• Dual lights allow for up to 200 watts of light, with 1 lf2 to 4 lf2 minute delay settings control. Plus, hinged lens allows easier bulb replacement.
• Advanced electronics allow you to open and close your garage door from greater distances.
• Safety eyes projects an invisible light beam across the garage door opening. If anything interrupts the beam while the door is closing, the door automatically reverses before making contact. If the beam is obstructed, the door will not close.
• Once your garage door goes down, it's securely locked with Posilock, a patented Chamberlain feature. An intruder cannot gain access.
• In event of a power failure, a manual release handle is provided.

LiftMaster Accessories

Wireless Keyless entry: Opens and closes door when you enter a private 4-digit code. No need for a key or remote control. No wiring. Illuminated for nighttime use. Gives friends, relatives and service people limited access to the home. Extra remote controls: Available in a three button model to program up to three openers to open and close from one remote. Mini 3-button remote: Operates up to three garage door openers. Turn garage door opener lights on and off .Carry on key chain, in pocket or purse.