Rock Seven RockBLOCK 9603 RF Transceiver Iridium Satellite modem, 5V

The Rock 7 RockBLOCK 9603 is a 2 way satellite communication device which allows you to send and receive short messages from anywhere on Earth with a clear view of the sky. It works far beyond the reach of Wi-Fi and GSM networks. Both 213-1336 and 213-1335 have an SMA connector for an optional external antenna which is ideal if the product is buried. The internal antenna is ideal for most installations.

Full 2-way communication system
Plug and play satellite communication