VDO 3-38 85mm OceanLink NMEA 2000 Tach - 5000 RPM - Black Dial Bezel OceanLink NMEA 2000 Certified 5000 RPM Tachometer. Also accepts J1939 inputs and converts to NMEA 2000. Features black dial and black bezel. Ocean Link Technical Information 1x NMEA 2000 input 1x J1939 and analog input Reverse polarity protection Protection rating IPX5 Operating temperature range -20 C 70 C 1224V Support up to 16 satellite gauges WARNING This product can expose you to chemicals including LEAD which is known to