A2004 Autopilot pack with A2004 controller, AC70 Autopilot computer, RF300 rudder feedback and Precision 9 compass.A2004 Controller: The A2004 is a dedicated autopilot controller designed to meet the needs of professional mariners aboard a variety of commercial vessels. It features a proven Simrad interface, presented on a wide-angle and zero-fog color display. Engineered for responsiveness and ease of use, the A2004 pairs a precision rotary control dial with dedicated buttons for instant access to steering modes, a custom-configurable Work mode, and automated turn patterns.AC70 Autopilot Computer: for reversible motor or non galvanic isolated solenoids, 1 NMEA 0183 RX/TX port, T-connector, 2m power network cable with terminator, 0.6m pigtail male. Terminator 120 ohm male. Installation manual and mounting accessories. Supply 12-24 VDC.RF300 Rudder Feedback: with transmission link and 10 m (33 ft) cable. The RF300 rudder feedback unit contributes towards smooth and accurate auto-steering by determining rudder angle. It is to be used as part of an autopilot system on boats with inboard engines.Precision-9 Compass: Outputs Heading (20Hz), Rate Of Turn (20 Hz), roll, and pitch (10 hZ) over the NMEA 2000 network. The Precision-9 Compass supplies heading and rate-of-turn information to Simrad, B&G and Lowrance autopilot, radar and navigation systems. Based on reliable solid-state sensor technology, this compact compass offers easy installation aboard any vessel.