My mechanic said that your product was very good, and he was correct.
P-101 CHT Probe
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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-101 CHT Probe
- Installation Instructions
Description
Package
Retail Price
P-101 CHT Probe*
-
$128
* To be used with the A-101 CHT Adapter, 700°F Max.

Specifications
Specifications
Type
Military Bayonet
Operating Temp Range
-80°F to 700°F Max.
FAA Certifications
TSO’d, PMA’d
Common Uses
CHT Readings
Configuration
Type K, Ungrounded
Operating Range
700°F Max
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
I like how the kits ship with everything needed for install and the wire labeling was very helpful.
- Customer
Nathan V. from Alaska
- Aircraft
c-150
- EI Instrument
Good support when we called with particular questions with the initial setup. We liked the functions and the price.
Good equipment at a good price. I have used your products before and have had great success.
- Customer
Ryan M. from Oregon
- Aircraft
Cessna 172L
- EI Instrument
Very pleased with the quality. [Chose because of] positive reviews from other aircraft owners.
Installing [EI’s FP-5L] in my RV 6. . . owned an FP-5L 6 years ago in a Cessna 206 on floats in a commercial operation in Alaska. Getting every ounce of payload, and coming home across Cook Inlet with the Cessna gas gauges near or on empty, I spent a lot of time explaining the benefits of the Fuel flow gauge… and reassured my passengers there were 12 gallons of fuel on board. I’m a believer…
Your guys were great at answering all my questions . . . .
- Customer
Alex R. from Canada
- Aircraft
1968 180H
- EI Instrument
The quality and design appear to be excellent.
[I chose the CGR-30P because of its] ease of use.
- Customer
Chris M. from Pennsylvania
- Aircraft
Piper PA-28 Cherokee
- EI Instrument
Great product. [nothing else] can compete.
The tach looks and operates amazing. Extremely accurate.
Keep it up. I’ll keep coming back.