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  #1  
Old 10-01-2019, 12:18 PM
jeffsvan jeffsvan is offline
 
Join Date: Jul 2010
Location: detroit, michigan
Posts: 174
Default Aftermarket temperature probes

Members,

Some of my E.I. UBG 16 analyzer probes are dying off.
P-110 EGT Probes
P-100 CHT Probes

Has anyone found a less expensive replacement from one of the electronics supply stores?

Are there alternatives or must I buy the $100 units from E.I.??

There seems to be a big markup on these.

thanks for any input.
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  #2  
Old 10-02-2019, 12:30 PM
chaskuss chaskuss is offline
 
Join Date: Mar 2005
Location: SE Florida
Posts: 1,448
Default No need to spend $100 each

Jeff,
You can buy both the EGT and bayonet style CHT probes from GRT for $43 each. If you use the "ring" style CHT probes, they are only $18 each. Scroll down near the bottom of the page linked below. See

http://grtavionics.com/home/product-guide/#eispkg

You can find them even cheaper on eBay [made in China]. Check to see what style of probes your engine monitor uses. The EGT will definitely by Type K. Most units use Type J CHT probes, but some use Type K for the CHT, as well.
Contact me via PM for more info about the eBay probes.

Charlie

PS The GRT CHT probes are J Style.

Last edited by chaskuss : 10-02-2019 at 12:31 PM. Reason: clarify CHT probe types
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  #3  
Old 10-02-2019, 12:49 PM
chaskuss chaskuss is offline
 
Join Date: Mar 2005
Location: SE Florida
Posts: 1,448
Default

Quote:
Originally Posted by jeffsvan View Post
Members,

Some of my E.I. UBG 16 analyzer probes are dying off.
snipped
P-100 CHT Probes

Has anyone found a less expensive replacement from one of the electronics supply stores? snipped
I couldn't find any info on the P-100 CHT probe on EI's site. However in the questions and answers on the ACS page linked below, they state that these are Type K. FYI, the are screw in, not bayonet. See

https://www.aircraftspruce.com/catal...RoCyAQQAvD_BwE

Charlie
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  #4  
Old 10-02-2019, 01:38 PM
ltampico ltampico is offline
 
Join Date: Jun 2007
Location: California
Posts: 41
Default

1st question what type J or K
2nd question are they ground it or ungrounded
you have to find out first
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  #5  
Old 10-02-2019, 01:46 PM
jeffsvan jeffsvan is offline
 
Join Date: Jul 2010
Location: detroit, michigan
Posts: 174
Default

Quote:
Originally Posted by chaskuss View Post
I couldn't find any info on the P-100 CHT probe on EI's site. However in the questions and answers on the ACS page linked below, they state that these are Type K. FYI, the are screw in, not bayonet. See

https://www.aircraftspruce.com/catal...RoCyAQQAvD_BwE

Charlie
The EGT a screw clamp style, the CHT can either be screw in or bayonet.


E.I. also has (allows) a bayonet style with adapter.
https://www.aircraftspruce.com/catal...01chtprobe.php

Would love to find decent replacements, buy bulk, have several on hand and be done with it. I don't mind paying $100 for a part, but I will need 6 probes if I replace them all. It starts to get pricey.
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  #6  
Old 10-02-2019, 02:40 PM
darata darata is offline
 
Join Date: May 2016
Location: Bend, OR
Posts: 47
Default

Our UBG-16 requires type K, ungrounded probes. No other probe type will function correctly. Have a look at the link below and pay special attention to the RS-4-2S overview and what is included with the package. ;-)

https://www.aircraftspruce.com/catal...ickkey=3287399
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Last edited by darata : 10-02-2019 at 02:43 PM.
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  #7  
Old 10-12-2019, 01:42 PM
chaskuss chaskuss is offline
 
Join Date: Mar 2005
Location: SE Florida
Posts: 1,448
Default What happened?

Jeff,
Did you ever get new probes? Was the info I sent you helpful?

Charlie
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  #8  
Old 10-16-2019, 08:52 AM
jeffsvan jeffsvan is offline
 
Join Date: Jul 2010
Location: detroit, michigan
Posts: 174
Default

Quote:
Originally Posted by chaskuss View Post
Jeff,
Did you ever get new probes? Was the info I sent you helpful?

Charlie
Yes, the info was helpful that everyone sent me. Now I know there are options.

I plan to replace one with a lower cost unit when I do my engine service- oil/filter change. Will see how it works out for me.

thanks everyone!
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  #9  
Old 10-16-2019, 12:46 PM
chaskuss chaskuss is offline
 
Join Date: Mar 2005
Location: SE Florida
Posts: 1,448
Default

Jeff send me a private message with your email address. I've got more useful info to share with you. It's basically the summary of a thread about thermocouples that was posted years ago on the Aeroelectric list. I managed to load the file onto my phone but I can't figure out how to copy and paste the info.

Charlie
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