These cheap magnet alarms are best used inside of the drawers of other mechanic's toolboxes! [We'd set up auto alarms w/ multiple high db sirens and boyyy would it get people's attention] 🤘🤣
Good on clear days, but not weather resistant. I used to make parameter alarms out of rat traps. I would drill a hole in the trap, under the striker arm, and use a cut off nail as a firing pin. I fastened a shelf bracket with one screw, and placed a starter pistol blank behind one of the chamfered holes, just under the firing pin. When someone walked into the monofilament line, attached to the trigger on the trap, the striker arm would slam into the nail/firing pin and the starter blank would fire, giving an audible alarm. That striker arm can also be used as a switch when you want to turn on lights or run an alarm inside your house. We used them at a you-cut Christmas tree farm because many trees were being stolen. Best way to cover acreage; works in the rain, day or night, and does not hurt anyone.
