Wading through several lines of defense to get to where you need to go is confusing when you have separate remote transmitters. That's why, at North Shore Commercial Door, we carry this Linear MegaCode MDT-4A five-channel visor transmitter garage door opener. This transmitter has four front buttons, each a different color, and one on top that comes with a button cover to prevent accidental pressing.
This MegaCode transmitter is designed to work with receivers and controllers using the 318 MHz and MegaCode format. It's factory-programmed with one code out of more than one million, which makes it incredibly tough to hack. Its high-visibility LED light switches on when the device is in operation, and the two 2032 lithium batteries it needs are included. The MDT-4A operates on a 318 MHz frequency, and it's incredibly compact at 1.6 inches wide, 4.2 inches high and 0.8 inches thick.
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