Can anyone please help me? I am looking for a simple alarm circuit diagram.
If anyone can help me, I will realy apreciate it.

Thanks Wynand

 

http://www.free-electronic-circuits.com/circuits/5-zone-alarm.html

http://www.1728.com/alarm.gif

Steve

 

That is an okay diagram for a burglar alarm circuit, but it doesn't explain very much. Why not go to the website where that came from?
http://www.1728.com/project3.htm

It has many explanations about how alarms work, using relays and so on.
(Oh and the site is mine).