keyspan 4 port serial - usb
USA-49WLC
http://www.keyspan.com/downloads/


gps
standard garmin


geiger
health physics instruments 
2070 gamma detector

closest product :
 http://www.fwt.com/hpi/hpi_2030ds.htm
 http://www.fwt.com/hpi/support/2030_MAN.PDF



COM PORTS
COM 3 - GPS   4800 N P 1

COM 5 - GEIGIER  9600 N P 1

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HW serial port

http://www.hw-group.com/download/sw/HW_VirtualSerialPort.zip

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GEIGER S/W
imagesco :  http://www.imagesco.com/geiger/winxp.zip

http://www.aw-el.com/win.htm    $129

http://geigercounter.oritech.com/en/software.htm