AcquaLinkA(R) NavSensorThe multifunctional AcquaLinkA(R) NavSensor is the gem of all sensors. The inertial sensor complements the inbuilt satellite GPS receiver module to provide accurate readings of the speed of travel as well as the pitch & roll (up and down). Compass readings can be displayed electronically thanks to the embeded compass, which also facilitate course corrections in electronic autopilots. The barometer and air temperature sensors are early indicators of forthcoming weather conditions. Features: NMEA 2000A(R) certified IPX6 extended protection rating GPS Module: Position, time, boats vector, signal quality, satellites Compass: +/-40Adeg tilt angle,