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Platoon Early Warning System (PEWS)
This military perimeter security system was designed for use by a US Army Infantry Platoon. Set-up around the unit‘s laager position, it will provide early warning of the approach of personnel or vehicles (it can sense the difference between them). Twelve detector/transmitters are included as well as two receiver units. The receiver units provide an audible alert (into a headset) and display the number of the transmitter that has detected an intruder. Note that the seismic spikes and antennae shown in the lower two photos are removed during transport (they screw on and off).
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&category=588&item=2224242455
amazing some of the things you can find on Ebay
This military perimeter security system was designed for use by a US Army Infantry Platoon. Set-up around the unit‘s laager position, it will provide early warning of the approach of personnel or vehicles (it can sense the difference between them). Twelve detector/transmitters are included as well as two receiver units. The receiver units provide an audible alert (into a headset) and display the number of the transmitter that has detected an intruder. Note that the seismic spikes and antennae shown in the lower two photos are removed during transport (they screw on and off).
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&category=588&item=2224242455
amazing some of the things you can find on Ebay
