Specification: Fit For:Car, Truck Motorcycle ATV UTV Marine Boat Yacht Face Color:Black Face with Chrome Ring Bezel Materials:Stainless Steel Grade of protection :IP67 Package method :Neutral box Speedometer and tachometer: Indicating Range:0-200KM/H Odometer Operating Voltage:9-32VDC Storage Temperature:-40~+85 ℃ Install Diameter: 85mm(3-3 / 8") Backlight:Red Led This tacho must be hooked up to the "W" terminal on vehicle alternator. Many diesel engines and most inboard gas boat engine alternator have this connection. It can also be working with speed sensor,flying wheel and ECU ect Minor gauges: Install Diameter: 52mm/(2-1/16")Input Ranges Oil Pressure: 10~184ohms, 0-145 PSI/0-10bar Fuel Level: 240-30 ohms, E - F Water Temperature: 287.4~22.4 ohms, 100-250F Volt: 8-1.
