Rotating Freqs. And door openers
Go for the new one with the button you push, a stand alone box is installed next to the opener and it rotates frequnecies to thwart baddies that carry around PGDO's to gain acess to ones house for theft. Note, I installed one in a ritzy neighbors house a few years ago and when I pushed the button, it open the house next door and set off alarm......What a fluke.....
