After a full IFR install on my Cessna 175, my two favorite instruments without question is the CGR-30 Combo set. Simple and customizable, the data is invaluable!
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E-2 Twin EGT Instrument
FAA Approved
- TSO’d, STC’d
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?
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Product Overview
Engine Leaning Feature
Precision Leaning
- Unique stable display allows precise leaning to peak EGT or specific temperature below peak.
EGT Diagnostics
- Valuable tool in troubleshooting EGT by providing early detection of potential engine problems.

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 E-2 kit includes two (2) P-110F Fast Response EGT Probes.

Prices
Retail Prices
Included in the package:
- E-2 Instrument
- P-110 EGT Probe x 2
- 20′ Thermocouple Extension Cables x 2
- Overlap Connectors
- Wire Harness
- Installation/Operating Instructions
Description
Package
Retail Price
E-2 Twin EGT Instrument Package
E-2
$820
Lead Time: Usually ships within 2–3 business days.

Specifications
E-1 Specifications
Dimensions
2.50″ x 2.50″ x 3.65″ Deep, 2 1/4″ Flush Mount
Weight
7 oz (E-2 Twin EGT 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
Good value and functionality. I’ve used your instruments on multiple aircraft thru the years with no issues. These are a nice upgrade over the original instruments in most older aircraft.
Outstanding support. From the friendly demeanor of whoever answers the phone to all the way to [their sales representative]. Your CGR-30 series is superb.
The display is large and clear. The functions are simple and easy to use. Great purchase decision.
This is a high quality instrument and works perfectly. Well designed, well constructed and well documented. I couldn’t be more pleased!
I installed a VA-1A Volts/Amps Insturment [sic] in my 1970 V35B to replace the original analog amp meter. What a great dual purpose digital gauge! Installation was simple and the product is very well made. It goes well next to my SuperClock I installed a couple of years ago. EI makes great products and this one will satisfy the most discriminating owner.
- Customer
Brewer P. from Mississippi
- Aircraft
Beechcraft Bonanza V35B
- EI Instrument
The installation was straightforward and quite easy. Reliability and accuracy far exceed the original [aircraft’s] oil pressure/temperature systems. Also, the price was about a third of the cost to replace the gauge cluster.
- Customer
Casey R. from Oklahoma
- Aircraft
Cessna 172M
- EI Instrument
EI representatives… have been very helpful, truthful, and knowledgeable… We had no idea, that a few weeks later [after our purchase], we would need to have a Top Overhaul. What great timing! Having your engine monitor installed in our plane will hopefully help us keep it out of the shop for further engine repairs.
- Customer
Phillip B. From Oklahoma
- Aircraft
Cessna 210N Centurion / Turbo Centurion
- EI Instrument
We liked the price and the reputation of your company.
- Customer
Roy C. From Kentucky
- Aircraft
Piper PA-28-235 Cherokee Pathfinder
- EI Instrument
My interactions with EI were all very positive. When I ordered the Dual CGR 30 instruments I was told there would be about a 6 week delivery time. It took a little less than 4 weeks. I am extremely happy with the service and product.
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.
Haven’t used it yet, but we are excited to & Love the way it looks!!
- Customer
Larry A . From Idaho
- Aircraft
Piper PA-28R-200 Arrow
- EI Instrument