d/lloodd11_36

v

ts off the alarm repeatedly. If it is done enough, they
may temporarily turn it off, or ignore it due to excessive false alarms.

It  is not hard to tell  if these devices are in  use. You cannot see them, but
you don't have  to. Simply get  3-4 medium  sized stones. Throw  them into  the
place  where you think the  protected area is. Repeat  this several times. This
works on the lesser advanced systems that have trouble distinguishing this type
of  seismic activity from human walking/running. If nothing happens, you can be
reasonably sure this  is not in  use. Now that  you can detect  it, how do  you
defeat  it? Well as far as the electronic field sensor is concerned, you should
wait for a windy night and cause excessive false alarms and hope they will turn
it off. As far as the seismic sensors, you can take it one step at a time, very
softly, maybe one  step every 30-60  seconds. These sensors  have a  threshold,
say,  two  or more  consecutive footsteps  in  a 30  second time  inte