Auto Meter’s race proven air-core electric instruments provide quick and accurate readings while keeping hazardous fluids outside of the vehicle ATM3321 2IN OIL PRESS, 0-100 PSI, MECH, SPORT-COMP 52.4mm Oil Pressure Meter Auto Meter Sport-Comp Analog Gauges Gauge, Sport-Comp, Oil 12V 16V Oil Pressure Sender AutoMeter's race proven air-core electric instruments provide quick and accurate readings while keeping hazardous fluids outside of the vehicle Quite possibly the most critical vital to monitor, engine oil pressure can mean the difference between making it home and needing to replace the engine 12 and 16 volt compatible, well-suited with nearly every street car or race car electrical system Autometer Sport Comp 52mm Mechanical 0-150 PSI Oil Pressure Gauge Red pointer for quick glance monitoring., Rugged reliable performance.