Alcor By Tempest 3-1/8 EGT / EGT Meter Type K

Part# 10-00128
MFR Model# 46155


Alcor gauges are aircraft quality gauges which will provide precise monitoring of engine temperatures. PMA/FAA approved.
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  • The best value in the industry backed by a generous 3 year warranty
  • Save on fuel costs through precision leaning—running as little as 100° too rich can cost $1,000 in wasted fuel over 100 hours
  • Designed for twin engine aircraft, providing a quick visual reference to peak EGT
  • Set reference to peak EGT where you want with easy in-flight calibration—special screwdriver included
  • No risk of malfunction during electrical failure—requires no external source of power for operation
  • Designed to provide temperature compensation for accurate readings year round, on the ground and at altitude
  • All necessary mounting hardware included
  • Alcor instruments are designed, manufactured, and supported in the U.S.A.


  • Type: K – Red and Yellow
  • Size: 3-1/8" diameter
  • Resistance: Scale 1600F at 7.44 Ohm
  • Weight: 0.4 lbs
  • Alcor P/N: 46155


Always fun to install aviation equipment. It was calibrated well and now both EGTs match relatively well.

Jay C Verified Purchase


April 11, 2023


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: For Alcor dual egt 46155, which is the correct probe?

You will need a type k thermocouple probe. Please see part number 86255 for a compatible probe. Please note that you will need to confirm the size of your old probes to ensure that you get a new one which will fit properly.

Q: Does it come with all the sensors and cables required for installation?

This is just the gauge. It will not include the probe.

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