Hello, Before buying this product, check the gate receiver frequency or door. If it is 27 MHz, as many installed a few years, go your way! Same some recent installations (even 433 MHz), but use self learning or rolling code, this is not suitable. It is imperative to a fixed frequency of 433.92 MHz and it works perfectly! Learning (or copy) from the original remote control is very simple from the moment we scrupulously follow the procedure.
