. . . the kit looks very well built and the company I fly for . . . has had a very good experience with your products and your customer support.
P-104 Universal Temp Probe
FAA Approved Instrument
- FAA TSO’d, PMA’d
- Accurate and stable, precise temperature measurements.
- Used to measure surface temperatures, 700°F Max.
- Robust construction.
- Perfected over decades of testing and field trials.
Compatible with:
MVP-50P, CGR-30, UBG-16, E-1, E-1P, E-2, E-4, E-6, EAC-1, EC-1, EC-1P, EC-2, TC-1P, C-1, C-2, C-4, C-6
Questions?
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Product Overview

Prices
Retail Prices
Packages include:
- P-104: Universal Temp Probe
- Installation Instructions
Description
Package
Retail Price
P-104: Universal Temp Probe
-
$128
Specifications
Specifications
Type
Screw Down, #6 Hole Size
Certifications
FAA, TSO’d, PMA’d
Max Operating Temp
700°F
Configuration
Type K, Ungrounded
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
Customer Service is far superior… with an excellent record of resolving … technical issues.
- Customer
C.J. R. from North Carolina
- Aircraft
Mooney M20C Ranger
- EI Instrument
I started with a CGR-30C. I loved it so much, I added a CGR-30P… [Your customer service] was a great help configuring it and EI gave me a great deal. I am now an EI customer for life!
- Customer
Andrew R. from Florida
- Aircraft
Piper PA-28-180 Archer
- EI Instrument
Nice product and good product support!
- Customer
Kenneth G. from Michigan
- Aircraft
Grumman American AA-5B Tiger
- EI Instrument
Awesome product. Fast easy installation.
- Customer
Rodney E. from Georgia
- Aircraft
Cessna 172M Skyhawk
- EI Instrument
Excellent tech help…
This is the second product purchased and I am completely satisfied.
. . . looks really good! Friends have these installed and give very good reviews.
- Customer
David W. from Arizona
- Aircraft
Cessna 150
- EI Instrument
Love it!
- Customer
Corey B. From Texas
- Aircraft
Grumman American AA-5A Cheetah
- EI Instrument
This is the third EI instrument I am having installed in “Lillybelle .” I am impressed with the ease of operation, the affordability and the accuracy of each of these instruments. For years I trusted my life to 50+ year old gauges. Now I don’t have to. What a relief!
- Customer
Charles M. from South Dakota
- Aircraft
Cessna 150F
- EI Instrument
This is a high quality instrument and works perfectly. Well designed, well constructed and well documented. I couldn’t be more pleased!
After enquiring through (one of) your dealers and calling EI directly it was clear that you provided good customer service and would likely not drop the ball on tech support, and so far I have been right.