Car alarm in its purest form it is bascially sensors connected to some siren.
The very most straightforward alarm would have a switch on the driver’s door, and it would be wired so that if someone opened the door, the siren would start wailing. You could implement this car alarm with a switch, a couple of pieces of wire and a siren. Most modern car alarm systems are much more sophisticated than this.
Autobacs Singapore for your Alarms Systems Solution
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