Sierra 781-579-035P Amega Series GPS Speedometer Features: Dial Range: 0-35 MPH Sender Code: GPS Receiver Size: 3″ Included LCD heading display to show course over ground Use our GPS antenna (sold sep) or connect to an existing NMEA 0183 GPS device – connectors included Speed accuracy of +/-1 MPH (once moving) Heading accuracy of +/-1 degree (once moving) Ideal for slow speed apps like pontoon boats and for high speed performance boats w/ pitot tubes Black dial, red graduations, white numerals, vivid white pointer staff Scratch resistant curved glass lens, with black near-flush bezels U.S. and metric scales Perimeter and thru-dial lighting Optional add-on eyebrow or square bezels available (see Gauge Accessories for details) Voltage: 12 VDC Current Draw: 0.15 – 0.20 A Operating Temperature: -40C to +70C Ingress Protection: IP 65 Bezel O.D.: 3.78 Housing O.D.: 3.39 Hole Size: 3.43 Shop All Amega Series