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I am looking for ideas related to alarms for boats. I stay at a semi public dock overnight and want the contents to remain untouched. I see blinking lights on some boats so I know they exist.
If you cover your boat you can use a cheap car alarm with a ir proximity or ambient light sensor with a relay wired for high pull to ground as a trigger on the hood pin switch lead. You will need an adjustable sensitivity sensor either way. Without a cover an ir may still work but you may get false triggers from weather or wildlife. Whatever you do don’t use a shock sensor as will most certainly get false triggers from wave motion.
