Simrad HS75 GNSS CompassModel: 000-15585-001 Supports all current global GNSS constallations, GPS, Galileo, GLONASS, BeiDou, QZSS Small form factor Heading accuracy 0.75 degrees High precision positioning Fast start-up time Plug and play installation Dead-reckoning during temporary satellite outage Plug and play with Simrad autopilot and radar systems 10 Hz heading and position update rate NMEA 2000 only Mounts directly on flat surface NMEA 2000 cable sold separately in different lengths Well suited as autopilot heading source Specifications Connectivity NMEA 2000 Yes Electrical Supply Voltage 6 - 36 VDC Power Consumption, typical 3.2 W Humidity 95% non-condensing Environment Operating Temperature Range -40°C - +70°C (-40°F - +158°F) Storage Temperature Range -40°C - +85°C (-40°F - +185°F) Waterproof rating IPX7 Heading Sensor Accuracy 0.75° RMS Type GNSS Compass with integrated gyro aiding Physical Dimensions (W x H x D) 158 x 74 x 348 mm (6.2 x 2.9 x 13.7 in) Mounting Type surface mount, pole mount Weight 0.75 kg (1.65 lbs)