6 Gauge set, GPS Speedo,Tacho,Fuel,temp,Volt meter,Oil pressure Specification: Fit For :Car, Truck, Motorcycle , ATV, UTV , Marine, Boat, Yacht Face Color :White Face with Chrome Ring Bezel Materials :Stainless Steel Grade Of Protection :IP67 Package Method :Neutral box GPS Speedometer and tachometer: Operating Voltage:9-32VDC Operating Current:≤100mA Operating Temperature:-30~+75 ℃ Storage Temperature:-40~+85 ℃ Install diameter: 85mm(3-3/8") Backlight: Red color at night Input Ranges Oil:10~184ohms,0-145 Psi Fuel:240-33 ohms, E - F Temp:287.4-22.4ohms,100-250F Volt:8-16V 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 tachometer sender.
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