Face Color:Black Face with Black Bezel. Install Diameter: 85mm(3-3 / 8). Backlight: LED backlight, Red color at night. This tacho must be hooked up to the "W" terminal on vehicle alternator.
It can also be working with speed sender. Install Diameter: 52mm/(2-1/16) mounting holes, screw on. Oil Pressure: 10184ohms, 0-145 PSI. (If you need other output signals, like 10-180ohms, 0-90ohms ect, Leave me a note while you paid). Water Temp: 287.422.4 ohms, 100-250F. For details, see individual gauge description at link below. 1 Press the Set button (less than 1 second) to change the backlight color. Color in sequence : Red(Default)-Green-Blue-White-Yellow-Kelly-Orange-Purple-Auto Mode. Remarks : When users select the AUTO MODE, the backlight will be off for around two seconds, and switch automatically as above sequence per minute.2 Hold the MODE button for three seconds for Switch TRIP01 or TRIP02 or COG to display. TRIP 01: (Default): total mileage for one working cycle, data will not be recorded when power off. TRIP 02: total mileage for one working cycle, data will recorded when power off, but, users could hold the set button for 35 seconds to clear. COG 00 : azimuth instantly indicating, data will not be recorded. Remarks : The unit of trip, total mileage and outta unit of dial are the same.
Speedometer 7 color backlights can be switched, backlight as shown below is just an example for your reference. (Tacho, fuel, water temp, volt, oil pressure , The backlight color of these 5 watches is red). All messages be reply within 24hours. Welcome for wholesales trading, thank you!