9 Digital Gauges for Mounting in Automobiles-Namely, Oil Pressure Gauge, Water Temperature Gauge, Fuel Gauge, Battery Voltage Gauge, Speedometer Gauge, and Tachometer, as Well as Cylinder Head Temperature Gauge, and Exhaust Temperature Gauge; Digital Gauges for Mounting in Aircraft-Namely, Tachometer Gauge, Fuel Gauge, Battery Voltage Gauge, Water Temperature Gauge, Oil Temperature Gauge, Oil Pressure, as Well as Cylinder Head Temperature Gauge, Exhaust Temperature Gauge