Installed digital volt/amp gauge in PA 28-181. Great unit easy to install. Much better than original.
P-100 – CHT Probe
FAA Approved Instrument
- FAA TSO’d, PMA’d
- Accurate and stable, precise pressure measurements.
- Can be used in a pressure environment.
- Robust construction, brass body.
- Perfected over decades of testing and field trials.
Compatible with:
MVP-50P, CGR-30, UBG-16, EAC-1, EC-1, EC-1P, EC-2, TC-1P, C-1, C-2, C-4, C-6, and CC-1P
Questions?
8am–4:30pm PST M–F
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Product Overview

Reliable Probes

An Engine Monitor is only as good as its probes. That’s why Electronics International (EI) has taken the development of its probes, connectors, and accessories very seriously. EI has been designing and manufacturing probes for over 30 years. All of our probes have been designed in-house by our engineering team. Our team has studied, tested and designed temperature probes since the 1970′s. They have written research documents such as The Pilots Manual – Leaning and Diagnosing Engine Problems and Accurate CHT Measurements. Just as an Engine Monitor is only as good as its probes, a probe is only as good as its connector. That’s why EI’s engineering team developed EI’s proprietary OLC-2 connector. The OLC-2 connector greatly increases reliability and reduces installation errors as compared to traditional type connectors. Whether you’re looking for a reliable and accurate CHT, EGT, TIT or various other probe types, EI has what you need. With more than a half million probes sold and tested you can count on EI’s reliability.
Prices
Retail Prices
Packages include:
- P-100 CHT Probe
- Installation Instructions
Description
Package
Retail Price
P-100 CHT Probe
-
$128
Specifications
Specifications
Common Uses
CHT Readings
Type
Screw-in
Operating Range
-80°F to 700°F Max.
FAA Certifications
TSO’d, PMA’d
Configuration
Type K, Ungrounded
Material
Brass
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
It works very well; easy operation.
- Customer
Socrates K. , Cyprus
- Aircraft
Cessna F172H
- EI Instrument
Very easy to install and directions were straight-forward.
- Customer
Paul H. from Oklahoma
- 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.
Love the situational awareness that the CGR-30 Combo gives me. Easy to read and understand displayed information.
Easy install and great gauges. Previous experience showed that EI’s units were… great prices and even better instruments. Being able to install the gauge as a primary instrument was a major plus.
- Customer
Logan from Montana
- Aircraft
Cessna 172B
- EI Instrument
Sales reps have been very friendly and helpful.
Easy to install and everything you need inside package. Good price, nice instrument and simple to use.
- Customer
Pantelis K. from Greece
- Aircraft
Piper Seneca I
- EI Instrument
Very pleased with the quality. [Chose because of] positive reviews from other aircraft owners.
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.
Keep it up. I’ll keep coming back.
Have had EI instruments in my past plane and current plane and they always performed flawlessly.
- Customer
Gary M. from California
- Aircraft
Cessna 182Q Skylane
- EI Instrument