Protectrix(TM) Technology
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Model 18A is the Newest Protectrix Model, it covers 19 out of 20 garage door openers. Including newer rolling code, and older dip switch models. Model GA+, S+ and (( )) have all been put into the 18A as well as more.

Find Older Protectrix™ Model:
Enter either: A) the model number of your Garage Remote Control,
B) your Garage Door Opener Manufacturer, or C) your Garage Door
Opener model number:

Example: 371LM