Brand: Nortek AS
Type: Aquadopp IM400
Depth rating: 400m
Description: An inductive modem allows real time data to be transmitted through a jacketed, steel cable using sea water as the return ground. This means that real time data can be sent over long distances using robust cables that do not contain individual signal wires.
Specifications: Download Datasheet
Remarks: (1) Without including IMM, (2) User need to prepare batteries by self.