The AIS Engine 1 and 2 can be upgraded to AIS Engine 3 specification by replacing the processor. This is a straightforward procedure where the old device is simply unplugged from its socket and replaced by the new device. AIS Engine 3 relays all AIS messages.
5 metre long extension cable (5 way) for early type 5 wire wind masthead unit or for extending the Clipper Depth Repeater cable.
(Note this cable suits the early type masthead units without the masthead connectors,
if it is to be used with later type masthead units removal of the plug and socket is required)
(Note this is not suitable with the later version 3 wire wind mast head units.)