Traditional incandescent lighting illuminates around the perimeter of the dial. These highly accurate GPS Speedometers include an omnidirectional 10 Hz antenna (10 samples per second) with a 16ft.. cable which is required for operation.. The dimensions for the antenna are quite small (1.472" x 1.339" x 0.508") allowing it to be easily hidden.. The GPS antenna utilizes up to 3 GPS satellites simultaneously and samples 10 times per second. Display features: Time/Date Cumulative Distance (odometer) Trip Distance (tripmeter) GPS Coordinates with Heading Info Compass and Peak Speed Recall. Utilizes up to 3 GPS satellites simultaneously and samples 10 times per second. Plug and Play no calibration required!. Features Vintage-Style Domed Lens.. Features a digital odometer with two user selectable tripmeters. 12 and 16 volt compatible compatible with nearly every street car or race car electrical system. Gauge kit includes GPS antenna spade connectors for wiring bulb and socket assembly red and green bulb covers mounting hardware and detailed instructions for installation