Hi. I need to urgently add a key pad to my elderly parents gates. They currently open them with key fobs or a button inside their property. However we now need to open them independently from outside with a security key pad. Can anyone please advise on this. I understand it will be wired in to the trigger circuit and you can program a set relay time to a nc or no relay. Is there a particular make & model to purchase ? Im reasonably ok with electronics through my work as a heating engineer and used to install cctv & alarms etc some years ago.
Many thanks
Many thanks