NavBox Electronic Control UnitThe AcquaLinkA(R) NavBox is the core of the AcquaLinkA(R) VDO Marine system. It acts as a CPU and signal interface. The NavBox provides a wide range of digital and analog input possibilities. It supports up to four electronic engines (J1939 or NMEA 2000A(R)) or one analog engine. It also features two VDO Marine SumlogA(R) paddle wheel sensor and one analog VDO Marine Windsensor connections, so legacy VDO Marine products can be used and brought to the digital age. NavSensor reads following analog data: Engine Oil Pressure Engine Oil Temperature Engine Coolant Temperature Transmission Oil Pressure Fresh Water, Waste Water and Fuel Level Voltage Rudder Angle Engine Frequency Battery Current Pyrometer It also features a NMEA 0183 input and output port as well as a buzzer output. All received data are converted and sent to the NMEA 2000A(R) network and to the VDO Marine Bus. This gateway function allows displaying engine, liquid level, pressure, temperature and other vital information on any compatible display on the NMEA 2000A(R) network or on designed VDO Marine AcquaLinkA(R) gauges or TFT Displays. The configuration of the NavBox can be done by using an AcquaLinkA(R) TFT and NavControl or by using the intuitive VDO Marine diagnostic tool. Reverse polarity protection NMEA 2000A(R) certified LED signal status indication Aluminum base plate Front & rear side protection rating IPX4 3x VDO Marine bus lines 1x J1939 CAN bus 1x NMEA 2000A(R) bus 1x VDO Marine Analog Wind Sensor Input 2x VDO Marine SumlogA(R) Inputs AMP Super Seal power input 26 pin AUX input (analog signals, NMEA 0183) Operating temperature range -20AdegC/+70AdegC This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.