AutoMeter's GPS Speedometer Interface is a plug-and-play solution for electronic speedometer calibration, ideal for offroad applications with large wheel and tire combinations, racing gearboxes, and custom installations. Features:• Plug and Play with AutoMeter Electronic Programmable Speedometers• Lightning quick 10 Hz signal update rate - fastest available• Fully sealed and paintable magnetic micro antenna• GPS module fully sealed against water and dust• 16 ft. antenna wiring for mounting versatility• 6.5 ft. wiring harness included• One touch calibration process takes only seconds• Works with both KPH and MPH speedometers Specifications: Signal Update Rate 10 Hz Antenna Dimensions 1.472 in. x 1.339 in. x 0.508 in. GPS Module Case Dimensions 3 in. (6 in. w/ wiring & connectors) x 2.5 in. (4 in. w/ mounting tabs) x 1 in. Antenna Cable Length 16 ft. Wiring Harness Length 6.5 ft. Pulses Per Mile 16,000 (default) Default Configuration 16,000 pulses per mile Part Number: 5289UPC: 046074052897