MGL Avionics Precision Water/Oil Temperature Probe

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Part# 11-05570


This precision temperature probe has an 1/8" NPT thread. Electrically isolated from the engine which is helpful in some installations Accurate with a maximum installed error reading of less than 2 degrees over the full temperature range. Recommended for applications were exact water and/or oil temperature readings are required.

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This unit failed after 10 minutes,

Pierre B Verified Purchase


August 11, 2022

The brass end fell off the wire probe when I opened the bag. MGL technical support said to epoxy the wires back in the brass end. Will have to see if this holds up.

Frank C Verified Purchase


October 20, 2021

The probe fell out of the body so I glued it back in, time will tell if it stays put or not. The unit came with no instructions on wiring which would save a lot of researching for info

Murray P
February 16, 2021

And same for me, sensor fell out of probe, this is a standard generic lm335 sensor, buy something else.

August 29, 2022

Had the same problem, temp sensor pulled out when package opened.

December 31, 2020

The lead seperated from the probe after removal from the packaging.

Ken T
November 25, 2020


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: How long is the wire to the probe?

Per MGL: The lead coming off of the temperature probe (11-05570) is 1'. This can be extended to match your application.

Q: Does this MGL sender have two wires?

This sender has 2 wires.

Q: What type of wire is needed to extend this sensor?

This is wire has two unshielded 24 gauge wires in the jacket so two unshielded 24 wires will work to extend.

Q: What is the temp range of this sender and could it be used for fuel temp sensing?

0-300 DEGREES FAHRENHEIT and this probe is meant for water or oil.

Q: Is one of the wires for ground?

No, both wires are run into the gauge.

Q: Will this sensor work with MGL RDAC?

Yes, it will work with that unit.

Q: Is part # 11-05570 compatible with MGL TC-6?

The TC-6 is a CHT/EGT gauge, it does not monitor water or oil temp. Part # 11-05570 would not work.

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