Best buy Liftmaster Openers shop: September 2011

Liftmaster 423LM Three Channel High Memory Coaxial Receiver

Features and Specifications: 18-35V AC/DC or 12V DC selectable power supply options. Security+ with rotating code technology - 390MHz. Use with up to 31 of any type transmitter in NORMAL security mode, including any combination of rolling code, billion code, or dip switch remotes. Easy programming. Open/close/stop functions for commercial operator applications. Receiver is compatible with Sears Craftsman, Lift-Master and Chamberlain. Antenna, bell wire and instructions included. ...Read more

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18-35V AC/DC or 12V DC selectable power supply options.
Security+ with rotating code technology
Use with up to 31 of any type transmitter in NORMAL security mode
Easy to program
Receiver is compatible with Sears Craftsman, Lift-Master and Chamberlain.

...Read more

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IMAGE OF Liftmaster 423LM Three Channel High Memory Coaxial Receiver

Liftmaster 423LM Three Channel High Memory Coaxial Receiver

Product Brand : LiftMaster

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Chamberlain WD822KD Whisper Drive 1/2-Horsepower Belt Drive Garage Access System combines whisper-quiet operation and a powerful, vibration-free motor for dependable performance year after year. Quick and easy to install, this system is ideal for homes that have rooms positioned above a garage, and it includes valuable protection features to guard against injury and unauthorized access to your garage.

The WD822KD Whisper Drive
Garage Access System
At a Glance:

Whisper-quiet, smooth operation
"Security+" rolling-code technology
PosiLock theft protection
Safety sensors with Rapid-Snap brackets
Two remote controls, wall-mount panel, keyless entry pad

Keyless entry pad lets you open
garage door using a secret code.

Enclosed gear case provides continuous lubrication and protection for long life.

Safety sensors guard against accidents
by projecting an invisible light
across garage door opening.

Included in-vehicle remote controls
are HomeLink compatible.

Whisper-Quiet, Smooth Operation Year After Year
Thanks to Chamberlain's exclusive Motor Vibration Isolation System (MVIS)--which eliminates powerhead vibration for reduced noise--the WD822KD provides the ultimate in quiet performance. No more grating, squeaking, grinding, or jarring mechanical noises every time your garage door is opened or closed.

Compatible with HomeLink, an in-vehicle remote-control system, and winner of the Good Housekeeping Seal of Approval, the WD822KD is built to last. Its 1/2-horsepower motor offers steady operation and easy lifting year after year, while the enclosed gear case provides lubrication and protection for long life and smooth movement. Additionally, rugged steel construction guards against damaging wear and tear and the effects of temperature changes.

Fast, Easy Installation in Just 60 Seconds
Quick and easy to install, this system arrives with three railing sections that assemble into one long piece. Clear, easy-to-read instructions guide you through the process step by step--in just one minute you'll have a completely assembled unit.

For added convenience, the WD822KD has a light that delivers 200 watts and has an adjustable time delay so you can enjoy illumination when you need it. It also comes with two three-button remote controls and a keyless entry pad for those times when your remote is not easily accessible.

Advanced Safety and Security Features Protect Against Accidents and Theft
The WD822KD is equipped with safety features that protect users from accidental closings, as well as from break-ins and theft. The included protector system features safety sensors with Rapid-Snap brackets that project an invisible light beam across the door opening and automatically reverse the door if anything interrupts the beam while the door is descending.

For added peace of mind, sensing technology will stop the door from closing if contact is made with a person or object and opener lights will turn on automatically if the infrared beam is broken.

To guard against unauthorized entry or use of your code, Security+ anti-burglary technology sends a new code every time you use your remote control. An added bonus, PosiLock theft protection ensures that once the door is closed, it stays locked.

The WD822KD motor is backed by a lifetime warranty; the belt is backed by a 10-year warranty.

What's in the Box
WD822KD with 1/2-horsepower motor and belt; two remote controls; soft-glow wall control; assembly instructions; and keyless entry pad.