75424 / 73870 Marantec 315MHz External Receiver Kit.

The Marantec 73870/75424 315MHz garage door opener external receiver kit from Garage Door Supply Company includes one 2-button remote control transmitter. This 73870/75424 Marantec garage door opener plug-in radio receiver set converts all older brands of garage door openers to the newer 315MHz receiver frequency. The Marantec model 75424/73870 external receiver kit is easy to install, too. The external receiver kit includes a plug-in radio receiver that plugs into a standard electric outlet. Also included with the kit are wires, the remote control and installation instructions.

Product Highlights:

• 75424/73870
• Works on all garage door opener brands
• Includes plug-in radio receiver
• Includes 2-button remote
• Includes wire, instructions
• Converts older garage door openers to newer 315MHz frequency