I have a simple security/alarm system I built for my carport after a thief took advantage of me.
It simply has a strobe light and an extremely loud siren, using photoelectric sensors. When the sensors are tripped, the strobe and siren sound/light up.
What I want to do is turn the system off after about 5 minutes once tripped, then be able to engage itself again if need be. Any suggestions on a simple timer? This is a low voltage dc system.