After a full IFR install on my Cessna 175, my two favorite instruments without question is the CGR-30 Combo set. Simple and customizable, the data is invaluable!
P-128 – OAT/Carb Temp Probe
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Product Overview

Prices
Retail Prices
Packages include:
- P-128 – OAT/Carb Temp. Probe
- Installation Instructions
Description
Package
Retail Price
P-128 – OAT/Carb Temp. Probe
-
$128

Specifications
Specifications
Typical Applications
OAT/Carb Temp Readings
Certifications
FAA, TSO’d, PMA’d
Configuration
Type K, Ungrounded
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
Great to have all 6 egt’s, installation was straightforward. [I chose E.I. because of] price and availability.
- Customer
Errol O. from Ontario, Canada
- Aircraft
Cessna 182 Skylane
- EI Instrument
[Customer Support was] very responsive and helpful. [I heard about EI through] advice from others. Just about everyone I asked about the CGR-30 loves it and your company.
- Customer
Brett U. from Idaho
- Aircraft
Piper PA-28 S-180 Cherokee
- EI Instrument
Safety and simplicity!
- Customer
Andrew L. from Florida
- Aircraft
Piper PA-28-235 Cherokee Pathfinder
- EI Instrument
My mechanic said that your product was very good, and he was correct.
Sales reps have been very friendly and helpful.
I was able to try out the CGR-30P in a flight school plane. I was very impressed with the ease of use, visual quality, and information provided on the main screen… I feel it will pay for itself in fuel savings, and extended engine time before overhaul.
- Customer
David M. From South Carolina
- Aircraft
Cessna 182J Skylane
- EI Instrument
Great product. So easy to read compared to the originals.
The older EI ultimate engine analyzer that came with my plane that I bought 7 years ago has always worked flawlessly.
While the installation is not quite done yet, I have seen the unit in my aircraft with the engine running and the monitor producing numbers. It looks very good and I cannot wait to go flying with it!
We’ve worked with EI for years and love the product and support always received. Quality & dependability.
- Customer
Tammy B. from North Carolina
- Aircraft
Air Tractor AT-802
- EI Instrument
Good reviews and I don’t have to modify my panel. Additionally, the reps at Oshkosh were extremely helpful and answered all my questions.
- Customer
Michael M. From Iowa
- Aircraft
Cessna 182N Skylane
- EI Instrument