Reddit reviews Swann Window/Door Magnetic Alarms - 2 Pack (SW351-MD2)
We found 1 Reddit comments about Swann Window/Door Magnetic Alarms - 2 Pack (SW351-MD2). Here are the top ones, ranked by their Reddit score.
Compact Magnetic Alarm for Window Or Door ProtectionPowerful 120-Db Siren Sounds When Window Or Door is OpenedCompact Design for Discreet PositioningEasy Installation—self-adhesive Pad SuppliedOperating Mode Indication
If scaring them is enough pick up one of these $5 microprocessors along with a note about this being a GPS tracking device...etc. Personally I wouldn't want to do this do to possible reprisals.
Maybe buy a burner phone and track location via Google Maps.. at least you would be able to see their route, where they stopped etc..
Get a security camera or repurpose an old phone into an IP security camera - instructions here
With some creativity maybe you could get video of the perps and at least be able to give something to the police or the Postal Inspector.. and you would know what they look like, maybe what type of vehicle and keep an eye out for it.
Also you could rig the box a bit, shaving cream bomb, glitter bomb, dog crap...etc . Nothing that could do damage, but let them know you are done with them... or even one of those cheap magnetic door alarms and moving the box makes it go off...
Good luck OP! I'm surprised you didn't get more replies.