This device allows to collect data which flows through the sensor network into a PC or device with a standard USB port. Waspmote Gateway will act as a ”data bridge or access point” between the sensor network and the receiving equipment. This receiving equipment will be responsible for storing and using the data received depending on the specific needs of the application.
Note: You must choose between EU Version (TX Power: 10mW. Only for use in Europe) and International Version (TX Power: 63mW), and the antenna (2 and 5dBi).
Documentation:
Waspmote Quick Tutorial
Waspmote Site 
Waspmote Technical Guides 
Sensor Boards Technical Guides 
Networking Guides 
Developers Forum 
Videos 
Articles 
50 Applications with Waspmote 
FAQ: Waspmote Vs. Arduino