Plug-and-play. Fits directly on OEM dash and connectors. Digit Brightness levels from 1 (darkest) – 5 (brightest). Include multifunction speedometer, tachometer, odometer, volt meter, air suspension meter, gear indicator, trip meter, engine temperature, oil temperature, and fuel level gauges. Indicator lights for oil, engine warning, warning light, high beam, fog light, voltage, anti-theft, cruise, ABS, and turn signals. Optional air pressure sensor for models equipped with air suspension is available separately. Specifications: Tachometer (0 – 9,999), RPM Shift Light (2,000 – 8,000 RPM), Maximum RPM (0 – 8,000 RPM). Speedometer (0 – 199 MPH), Maximum Speed Record (0 – 199 MPH), Overspeed Warning (19 – 199 MPH). Odometer (0 – 999,999 miles), Tripmeter A/B (0 – 9,999 miles), Mileage Maintenance (300 – 10,000 miles). Engine Temperature (Standard/Customize), Oil Temperature Meter (32° F – 248° F), Maximum Oil Temperature Record (32° F – 248° F), Effective Temperature Range (14° F – 140° F). Fuel Meter (6 levels | 1 level = 16.6%), Fuel Tank Volume (Off/1 – 9.9 US Gallons), Average Fuel Consumption (Off/MPG), Remaining Mileage (0 – 6,249 miles). Volt Meter (DC 8V – 18V), Effective Voltage (DC 12V). On CVO models the run/stop switch must be in the ON position to change settings on the display.