Amazon.com: CYONRUAN Oil Pressure Gauge 52mm Oil Press Meter with 1/8 NPT Male Thread Sensor,with Cup,2'',7 Colors, 0-140 PSI, Digital LED : Automotive
Digital Oil Pressure Gauge with Flashing Alarm 0-1.00MPa Car Engine Oil Pressure Meter Press Sensors 9-35V for Auto Motorcycle - Walmart.com
UMA 2-1/4" Electronic Oil Pressure Gauges TSO | Aircraft Spruce