3-3/8" (85mm) OceanLinkA(R) GPS Speedometer (0-70 KN/MPH/KMH) - White Dial & BezelThe OceanLinkA(R) GPS Speedometer features an embedded GPS antenna, an inverted dot matrix LCD and NMEA 2000A(R) connectivity. Up to 20 satellite gauges of 52 mm each, can be connected thanks to the integrated EasyLink connectivity. Displayed Data:Heading, Depth, Seawater Temperature, STW, SOG, Date & Time, Battery Status, Air Temperature, Engine Oil Pressure, Fuel Level, RPM, Coolant Temperature, Transmission Gear Temperature, Coolant Temperature, Fresh Water Level, Waste Water Level, Trim, Engine Hours, Rudder Status, Booster Pressure, COGFeatures: 1x NMEA 2000A(R) input 1x J1939 and analog input Reverse polarity protection Anti-fog double layer plastic lens Protection rating IPX7 Operating temperature range -20AdegC/+70AdegC 12/24V WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Gauge Type: Speedometer Box Set: No Gauge Size: 3-3/8" Series: OceanLink Box Dimensions: 4"H x 8"W x 8"L WT: 0.85 lbs UPC: 7640178721050