Neptune Space
	The Neptune Space is also available as a kit with either the GSM DC™ or GSM communication unit.
M100 Portable Surface Transceiver (code 33165)
	The M100 is a portable surface transceiver unit that may be worn on the operator's belt. This unit is high performance, compact, and easy to use. It is made to respond to the demands of communicating with divers in action.
GSM Global Submarine Messenger