Well a little bird aka google told me it was a series of a 9 or 12 tiny switches that live in the garage door opener whose sequence of ups and downs creates a fingerprint.
													
																	10 switch garage door opener. 
								
	
		
	
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																	Linear 3089 multicode 3089 compatible visor remote opener. 
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																	Simply silver 10 digit pins ez code remote control garage door gate opener transmitter 300 mhz. 
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																	Here s the partially obscured so you can t get into our garage dip switch in one of our existing remotes. 
															
													
								
	
		
	
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																	Chamberlain 1 25 hp myq secure view and ultra bright smart belt drive garage door opener with myq and wi fi compatibility and battery back up and led light and camera s item 1630354 model b6765. 
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																	10 switch garage door opener. 
																	Amazon s choice for 10 dip switch garage door opener. 
																	Wifi smart garage door controller wireless garage door opener wifi app switch remote control compatible with alexa google home and ifttt. 
															
													
								
	
		
	
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																	These openers usually involved a wired switch being run from the door motor to a keypad or button that could be pressed from inside the vehicle. 
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																	Compatible firefly ii 300mhz 10 dip keychain. 
															
													
								
	
		
	
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																	Match that sequence in your remote and you ve got a match. 
															
													
								
	
		
	
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																	Garage door remote 10 dip switch. 
															
													
								
	
		
	
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																	The first electric garage door opener was introduced in 1926 but didn t gain in popularity until after world war ii. 
																	Linear 3089 multicode 3089 compatible visor remote opener. 
																	As technology improved the wireless remote was created and used radio signals to.