Build this single zone DIY burglar alarm using cheap off-the-shelf components. It's suitable for all types of premises - including caravans, campers and mobile homes.
COMMENTS Homer SUGGESTIONS

Single Zone Transistor Alarm - Photograph

 		MORE
ALARM
CIRCUITS


Transistor Alarm
Schematic 		The Rest of Ron's Circuits Write To Ron More Free-to-Use Circuits Circuit Exchange International


Circuit Board

This is a photograph of the single-zone Transistor Based Alarm circuit board. Its features include automatic Exit and Entry delays and a timed Bell/Siren Cut-Off. It's designed to be used with the usual types of normally-open and normally-closed input devices such as - pressure mats - magnetic reed contacts - micro switches - foil tape - and PIRs.


A Photograph Of Ron J's Single Zone Transistor Alarm - Circuit Board


Click here if you're new to constructing stripboard projects.

Transistor Alarm
Schematic 		The Rest of Ron's Circuits Write To Ron More Free-to-Use Circuits Circuit Exchange International
1