900/1800MHz Dual Frequency Duck Antenna RP-SMA

by Sparkfun

900/1800 MHz Duck Antenna 2dBi with regular RP-SMA RF connector. 50 ohm impedance. 105mm long.

Be sure to pick the antenna with the right connector. Almost all 2.4GHz and 915MHz antennas need to be RP-SMA. See this SMA Connector tutorial for a good visual aid