Icod Plus, 2 wire decoder system is the evolution of the Icod coding-decoding system. Like the previous version, it is composed of a control unit ICOD PLUS (able to code the signals coming from the controller to transmit them through the two non-polarised wires) and decoders to receive the signal transmitted (one type for connection to the electrovalves, one for the Master Valve (MV) and a third for Pump Control (CP).

Compared to the earlier version, it has the following extra features:
1. Possibility of changing the impedance to better adapt to the various electrical conditions of the system
2. Extractable terminals to facilitate system wiring 
3. Possibility of station activation in manual mode (without the need of a controller to give the command)
4. New resin-bonded decoder IP68 (50 cm deep under water)