2-1/16" Air/Fuel Wide Band Gauge 10-20 (w/ warning) (FOR SPARTAN) R2-WB4 Note: Input is 0 volts to 5 volts $138.13
2-5/8" Air/Fuel Wide Band Gauge 10-20 (w/ warning) (FOR SPARTAN) R25-WB4 Note: Input is 0 volts to 5 volts $153.61