Xbee
XB24-BCIT-004 Xbee Znet 2.5 (series 2), 1mW, chip antenna, 250000bps
(from 19-11-2013 code XB24-BPIT-004)
manual\
XBee USB Adapter Board
Interface between pc and Xbee.
Can be used to configure the XBee Module through Digi's X-CTU software