OUTDOOR security system help

[jimmini]

Does anyone know of a OUTDOOR security system motion detector with a siren that is self powerd?THAT works. I want to know when someone is stealing my Honda 2000 generator BEFORE they cut the alarm-it cable.All system seem to deal with the problem after someone is already inside your RV or after cable is cut the alarm goes off.I want to them before damage is done.I also have mouted the generator to a plate and park the trailer tire on that. But they still try.

[zamboni]

Just rig it w/ a lethal dose of pepper spray or mace! )
Amazon.com: Havahart Spray Away Motion Activated Water Repellent #5265: Home Improvement

I would think their screams of pain would be enough to wake you or other neightbors...just make sure not to set it off yourself!

(disclaimer:***I am just kidding about this. Don't try this at home.)