12 gauge parimeter alarm.

They have better ones…

These little badboys are made by a company called Fith Ops (Perimeter Camp Safe). I'll admit I don't know how great of an idea they really are with live rounds unattended.. :) But neat toy to have around in a bind.. Also works with flares and pepper gas.. ;)

Imagine forgetting you have this, going to take a piss, and shitting at the same time.

Hmmm, seems like we could alter this and turn sideways to make it more than just a warning.

For max dB levels use 12 gauge black powder saluting blanks.

It would be a shame if someone used it hand held with some sort of caliber adapter...

Personally, I'd rather have a little electronic horn that gives a 3-5 second beep.