Most automatic gate systems have a key or pin which you need to use when you are stuck inside your property if (when) your gate stops working. Contact me for advice if you are not sure what you need. Don’t wait for it to happen in the middle of the night, or when you are in a hurry. Some gate arms and operators have ordinary keys, some have plastic things with a triangular receptacle or pin. I don’t stock them, I have a few for my own use while servicing.
I'm a gate automation technician, this is my blog!