Plug and Play with AutoMeter Electronic Programmable Speedometers.. Lightning quick 10 Hz signal update rate is the fastest available.. Fully sealed and paintable magnetic micro antenna (Dimensions: 1.472" x 1.339" x 0.508"). Includes 16 ft. of wiring for plenty of mounting versatility.. GPS module is fully sealed against water and dust. Includes 6.5 ft. wiring harness. Case Dimensions: 3" (6" w/ wiring &. connectors) x 2.5" (4" w/ mounting tabs) x 1". One touch calibration process takes only seconds for most other electronic speedometers.