Specification3 in 1 Set: Volt Meter + Oil Pressure Gauge + Water Temperature Gauge,Thread Size of Sensor Port: 1/2"-14NPT,Water Temperature Gauge: 100-280,Volt Meter: 8-16V,Oil Pressure Gauge: 0-100 PSI. Working Voltage DC(10-15V) 12V ProfessionalFits most hot rods and classics engines including GM (CHEVY, GMC, OLDS, CADILLAC, PONTIAC, BUICK, FORD, & MOPAR (CHRYSLER, DODGE, PLYMOUTH).Fitment: Universal fit for most 12V Vehicles. Working Voltage DC(10-15V) 12V ProfessionalFits most hot rods and classics engines including GM (CHEVY, GMC, OLDS, CADILLAC, PONTIAC, BUICK, FORD, & MOPAR (CHRYSLER, DODGE, PLYMOUTH).Fitment: Universal fit for most 12V Vehicles. FeaturesClassic and minimalist styling.Chrome triple gauge set with white face gauges.The background light lit by the bulb will not cause discomfort to the eyes at night. PracticalHigh sensitivity and easy operation.Add a vintage look and feel to your ride, high quality and light weight. Mechanical design, compared with electronic instrument, its measurement results will not be affected by electromagnetic interference and other factors.