Fith Ops Perimeter Trip Alarm - Made of 6061 Aluminum - Spring Trip System - Use to Set a Camp Safety Perimeter Alarm - Made in USA -

This product is excellent - very well made. Have done a test and check, all four permiter alarms that I ordered worked on the first try. My compliments to fith ops.

USA Made high quality, excellent company and works as described. Easy setup

These are American made and work without question. Bought a Chinese version of these trip alarms and none worked.

Works well! The video shows a 12 gauge skeet shooting shell (lead removed and then loaded with baking flour) to show the dispersion pattern if a person were to use a pepper round. I would have given it 5 stars except for a couple things. I filed the release pin because it had a burr that was increasing trip pull force required to trigger the shell. The pin was catching slightly. One thing I don’t like but may be ok… the tension dent is in the center line with the center fire of the shell. If corroded or stuck I wonder if the tension dent pin could fire the round while the shell were inserting quickly. IMO the tension dent should be off center with the firing pin.

It I’ll wake you up when tripped and run off most intruders