Grand Rapids EIS Carburetor Air Temperature Probe

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Part# 11-06273
MFR Model# CARB-01


Program your EIS to warn you when your carburetor temperature is right for icing. Machined brass probe works with most carburetors except Bing.
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Exactly what ordered

Rick L Verified Purchase


July 30, 2021

Bitte um Lieferung

Gerhardt D
August 3, 2020

Does not work with Lycoming O235. I agree with Bruce N s assessment of the product. Carb temps 75 - 90 Fahrenheit.

Chuck H
March 14, 2021

Because of its metal design, it measures temperature of the carburetor, not the temperature of the carburetor air. There is a significant difference between the two, particularly on Lycoming engines where the carburetor is heated by the oil pan.

Bruce N
December 21, 2018


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: what is the thread size and length under the head of the Grand Rapids EIS Carburetor Air Temperature Probe?

Per the manufacturer, the thread size is a 1/4in and the length under the head of the probe is also a 1/4in.

Q: What are the ohm/temperature readings for the EIS Carburetor Air Temperature Probe?

Per the manufacturer: at 59F - 15.7K Ohms, at 68F - 12.5K Ohms, at 77F - 10K Ohms, at 86F - 8K Ohms.

Q: What connector pin/size is used for interface?

For interface to the Grand Rapids EIS 400 uses D-Sub male pins 24 to 20 gauge. Our part number for these pins is 11-00139.

Q: What type of probe is this? Type K, LM336, NTC, etc?

Per the manufacturer - the probe is a thermistor type.

Q: Is this calibrated for C or F?

This will read in Fahrenheit.

Q: CARB-01 probe has two wires, one gray and one black. Is the black wire to ground buss and the gray wire to the gauge terminal?

Black wire is ground.

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