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.
C-2 Twin CHT Instrument
FAA Approved
- TSO’d, STC’d.
- Replace your aircraft’s current CHT gauge.
Don’t Need Your Glasses To Read
- Large digital backlit display.
Interpret Your Readings Faster
- The digital display allows for quick trend analysis.
Budget Friendly
- Same precision found in the most advanced analyzers on the market, but won’t break the bank.
Accurate, Dependable & Easy To Use
- LCD sunlight viewable and backlit for night operation.
- Electronics International consistently has been a leader in digital engine instrumentation since 1979.
Questions?
8am–4:30pm PST M–F
[mbhi location="Main"]
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-1 connector. The OLC-1 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.
The C-2 kit includes two (2) P-100 CHT Probes.

Prices
Retail Prices
Included in the package:
- C-2 Twin CHT Instrument
- P-100 CHT Probe x 2
- 20′ Thermocouple Extension Cables x 2
- Overlap Connectors
- Wire Harness
- Installation/Operating Instructions
- STC/AML
Description
Package
Retail Price
C-2 Twin CHT Instrument Package
C-2
$820
Lead Time: Usually ships within 2–3 business days.

Specifications
Specifications
Dimensions
2.50″ x 2.50″ x 3.65″ Deep, 2 1/4″ Flush Mount
Weight
7 oz (C-2 Twin CHT Instrument Only)
Power Requirements
7.5 to 35 Volts, Typical: 0.1 amps @ 12 Volts
Display
Viewable in direct and indirect sunlight.
Backlight
Fully backlit and dimmable for night flights.
Certifications
FAA TSO’d, STC’d

Videos
Product Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
Great customer support. My A&P installed a CGR in a Comanche and liked it.
- Customer
Michael T. from Ohio
- Aircraft
PA28
- EI Instrument
The reviews online were very good. Customer service has been great.
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
Excellent Service. Superb Product.
- Customer
Steven N. from Colorado
- Aircraft
Cessna 182E Skylane
- EI Instrument
Simple and Easy.
- Customer
Aaron H. from Washington
- Aircraft
Cessna 140
- EI Instrument
Great products and very clear install.
- Customer
John W. from North Carolina
- Aircraft
PA-12 Piper
- EI Instrument
Good to go! Excellent instructions and easy install. Outstanding instrument!
Works great!
Customer support is great (and the) user interface is superior to other products.
- Customer
Earl L. from Idaho
- Aircraft
Cessna 170B
- EI Instrument
I won a FP-[5]L and had it installed in my c150. I was/am impressed with the accuracy and ease of operation of the FP. I wanted a new tach and I trust (and verified) that the EI R-1… would be my best choice. I am not a rich man. These instruments are affordable and incredibly accurate. Already planning my next buy from EI.
- Customer
Charles M. from South Dakota
- Aircraft
Cessna 150F
- EI Instrument
EI’s team is great; you guys are the best.
- Customer
Brian N. from Arizona
- Aircraft
Piper PA28RT 201T
- EI Instrument