Build this, put it in an ideal location. Instant flashing security system warning light for your cars. I did, and everyone thinks I installed a security system. That is one cost effective car alarm.
This is a good little project for a beginner just learning how to assemble. I used this to simulate an auto alarm. Works great!
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We are small group of performing musicians on a tight budget. MCM products have worked very well for us. Always looking for more live sound deals.