Check the listing for details. Raymarine Evolution EV-1 Bulkhead Mount 9-axis Compass. Condition: New. Listed at 921.19 USD. Evolution EV-1 Bulkhead Mount 9-axis Compass by Raymarine®. At the center of every Evolution system is the intelligent EV sensor core, a 9-axis sensor that monitors vessel motion in all three dimensions. The innovative EV sensor core combines advanced solid-state sensors with the Evolution autopilot processor into a single easy-to-install housing. Mount the EV sensor core above or below decks, the rugged enclosure is fully sealed and built to IPX6 and IPX7 waterproofing and submersion standards. The EV-1 is designed for Evolution mechanical and hydraulic autopilot systems. SeaTalkNG networking enables a single cable connection for power and data to the Evolution ACU (actuator control unit) and extended SeaTalkNG and NMEA2000 networks.