NMEA 2000 Cable & T Connector Connection Kit for Siren 3 ProOptimize the connectivity of your Connected BoatA(R) system, allowing you to monitor engine data, water, fuel and waste tanks, and more! The NMEA 2000 Connection Kit includes a 2-meter connection cable and a 3-Way Connection T - everything you'll need to hook up to the NMEA 2000 data system 'backbone'. *Compatible with the Siren 3 Pro Only