Will last a short time if not used very much.
Not very loud, but would frighten someone breaking in. I have 3 sheds and this is my 6th alarm. After a few months they don't respond to the cancel code and become very annoying. Re-programming sometimes works for a short time but after that the only way to shut them up is to take the battery out. I have bought this one just to last long enough for me to design and build my own unit.
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