The FP-5l I had installed is easy to use and so accurate it’s almost scary. When I find a company that produces a product that good I stick with them. The fact that these instruments also look so darn good didn’t hurt either.
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
Very affordable… great installation instructions. [I chose EI because of its] price point, certified primary.
- Customer
Benjamin T. from South Carolina
- Aircraft
Piper PA-28-181 Archer II
- EI Instrument
Every person was willing to help me when I needed and the whole purchasing process was smooth. [And, E.I.] was recommended by my mechanic.
Good to go! Excellent instructions and easy install. Outstanding instrument!
Love the situational awareness that the CGR-30 Combo gives me. Easy to read and understand displayed information.
I have never had an issue with any EI products… it looks fantastic on the panel.
- Customer
Thomas A. from Oklahoma
- Aircraft
Beechcraft Bonanza E35
- EI Instrument
Compact, precise, awesome!
- Customer
Harvey C. from Maine
- Aircraft
Cessna A185F Skywagon and AgCarryall
- EI Instrument
Some of the best customer service in the avionics network that I’ve had the pleasure of dealing with. [I chose EI because of the] features, simplicity, and the user-friendly platform.
Works Great! Love it!
We liked the price and the reputation of your company.
- Customer
Roy C. From Kentucky
- Aircraft
Piper PA-28-235 Cherokee Pathfinder
- EI Instrument
I have worked with and installed a few of your competitors’ and your systems. EI instruments’ ease of use and installation make these systems my go-to choice and number one recommendation to customers.
Nice product and fulfills the requirement.