Quantity   Component name
2 × XBee-PRO 900 Datasheet: https://www.sparkfun.com/datasheets/Wireless/Zigbee/XBee-900-Datasheet.pdf
2 × Arduino Pro Mini 328 - 5V/16MHz I thought 2+ Arduino's was in the contest rules? Sparkfun product page: https://www.sparkfun.com/products/11113
2 × GPS Shield Used for PoC. Will do away with all shields in final version. Sparkfun product page: https://www.sparkfun.com/products/10710
2 × FTDI Basic Breakout - 5V Used for development, debugging and programming of the Arduino Pro Mini 328. Sparkfun product page: https://www.sparkfun.com/products/9716
2 × Breakout Board for XBee Module Just makes things easier for the PoC. Sparkfun product page: https://www.sparkfun.com/products/8276