Category: InstrumentsInstrument Category: EGTType: K - Red and YellowCalibration: 500F @ 8.0 Ω / 1600F @ 3.63 ΩWeight: 0.4Size: 3-1/8"Single or Dual?: Dual: Instrument CategoryThe best value in the industry backed by a generous 3-year warrantySave on fuel costs through precision leaning—running as little as 100° too rich can cost $1,000 in wasted fuel over 100 hours, see the proof hereQuick visual reference to peak EGTSet reference to peak EGT where you want with easy in-flight calibration—special screwdriver includedIncrease the life of your engine and enhance safety through proper monitoringCHT calibrated to true temperature—500 degrees Fahrenheit at 8 ΩDesigned to provide temperature compensation for accurate readings year round, on the ground and at altitudeNo risk of malfunction during electrical failure—requires no external source of power for operationAttention homebuilders—easy installation with no electrical system requiredAll necessary mounting hardware includedAlcor instruments are designed, manufactured, and supported in the U.S.A.