Wide area motion sensor

[scasko@xxxxxxx]

  I am looking for some wide area motion sensors as part of an alarm
system.  They would have to be able to cover and area at least 100',
and hopefully 200', from the sensor.  I would also like them to be able
wirelessly report back to a central monitoring point so that I can
avoid running thousands of feet of wiring.  It's a very large open
warehouse so transmisstion shouldn't be a problem.

Thanks