Your customer service is excellent and your products are top quality!
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
Currently have multiple EI Instruments in our aircraft. Quality and reliability are key.
- Customer
Jason Y. from Arizona
- Aircraft
Cessna 182A
- EI Instrument
Customer support is great (and the) user interface is superior to other products.
- Customer
Earl L. from Idaho
- Aircraft
Cessna 170B
- EI Instrument
[The EAC-1] looks great running… The wiring harness was very well fabricated. Installation was easy- fit perfectly in an existing hole in panel. The brightness of the display is excellent.
Straight up install no issues. Works as advertised!
- Customer
John L. from Georgia
- Aircraft
Piper PA-28-151 Cherokee Warrior
- EI Instrument
Good support when we called with particular questions with the initial setup. We liked the functions and the price.
[I chose the CGR-30P because of its] ease of use.
- Customer
Chris M. from Pennsylvania
- Aircraft
Piper PA-28 Cherokee
- 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
. . . 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.
Nice Instrument, all the electrical information I need in one place. [I chose EI for its] performance and price.
- Customer
David C. from the United Kingdom
- Aircraft
Scottish Aviation Bulldog
- EI Instrument
EI’s team is great; you guys are the best.
- Customer
Brian N. from Arizona
- Aircraft
Piper PA28RT 201T
- EI Instrument
Responsive customer service, kudos to [customer service].
- Customer
James A. From Alabama
- Aircraft
Cessna 182B Skylane
- EI Instrument