Waspmote Digimesh-PRO SMA 5 dBi

Waspmote is an open source wireless sensor platform specially focused on the implementation of low consumption modes which allows the sensor nodes ("motes") to be completely autonomous, that is battery powered. Lifetime of Waspmote sensor nodes may go from 1 to 5 years depending on the duty cycle and the radio used.

Waspmote DigiMesh PRO embedded RF modules utilize the peer-to-peer DigiMesh protocol in 2.4 GHz for global deployments. This innovative mesh protocol offers users added network stability through self-healing, self-discovery, and dense network operation.

You will need batteries to use Waspmote as an autonomous device.

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