Residential Garage Door Accessories
Door Doctor offers a complete selection of LiftMaster and Linear garage door accessories.
Mini 3-Button Remote Control (with Security+®) - A Liftmaster Professional Product
A miniature version of our 3-button remote control...and just as powerful Ideal for pocket, purse or a key chain With every push of the button,
you get a brand-new code, one of over 100-billion codes, never to be repeated Operates up to three garage doors and/or turns your garage door opener lights on/off.
3-Button Remote Control
(Security+® Anti-Burglary Technology) - A Liftmaster Professional Product
With every push of the button, you get a brand-new code, one of over 100-billion codes, never to be repeated.
Operates up to three garage doors and/or turns your garage door opener lights on/off.
Wireless Keyless Entry with Security+®(Security+® anti-burglary) - A Liftmaster Professional Product
Security+® anti-burglary technology Open/close your garage door without a remote or keys Completely wireless
Temporary password option enables friends or service people to enter your house without giving them your personal code
1-Channel Custom Block Coded Key Ring Transmitter - A Linear Product
The Model ACT-31C 1-Channel Custom Block Coded Key Ring Transmitter is designed for use with Linear's access control products.
The Model ACT-31C is a single-channel device supplied with a quick-disconnect key ring. Also included are lithium batteries with a five-year service life.
A unique 10-second time-out feature prevents the system from being shut down by a single transmitter transmitting continuously.
The transmitter is MegaCode format, which means each transmitter is factory preprogrammed with one of over 1,000,000 codes,
virtually eliminating the possibility of code duplication. Because the receiver "learns" each specific code,
no unauthorized person can gain access to the system by reprogramming a transmitter.
Custom block coded transmitters are factory programmed to your choice of sequential transmitter ID codes.
When used with a Linear access controller, transmitters can be locally or remotely programmed into memory by entering the first and last
codes of the block into the system. Facility codes can also be selected to further customize the system.
- Available in factory programmed blocks of transmitters with your choice of starting block code number
- Compatible with all Linear access receivers and controllers
- Supplied with quick-disconnect key ring
- Factory programmed MegaCode format supports over 1,000,000 codes
- Two type 2016 lithium batteries supplied
- RF frequency: 318 MHz
- 1.25" W x 2.25" H x 0.48" D
- Minimum order quantity 10 transmitters
3-channel Visor Transmitter - A Linear Product
The MCT-3 3-channel Visor Transmitter is a wireless radio control designed for use with automatic garage and gate operators.
Each of the three transmitter buttons will send a unique code when pressed.
One button can be used to activate the individual's garage door opener, a second button can operate an access gate,
a third button can activate an additional garage door operator or most Linear 318 MHz MegaCode wireless receivers.
MegaCode Wireless Keypad(Activates multiple MegaCode) - A Linear Product
Activates multiple MegaCode receivers. User selects 1 to 6 digit PIN number or 1 to 6 letter PIN name. Programming is easy via the keypad;
MegaCode receiver auto-learns PIN. Backlit keys for easy viewing. Wall mounting hardware (2 screws and anchors) supplied.