Really impressed thus far . . . . a rock solid replacement for old mechanical gauges.
- Customer
Eric H. from Mississippi
- Aircraft
Beechcraft C23 Sundowner
- EI Instrument
8am–4:30pm PST M–F
Open Now
This feature requires an optional Remote Switch (RS-4-1S, add $349) see in Product Catalog and Price List.

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-1 kit includes one (1) P-110F Fast Response EGT Probe.

E-1 Package
E-1
$428
Lead Time: Usually ships within 2–3 business days.

Dimensions
2.50″ x 2.50″ x 3.65″ Deep, 2 1/4″ Flush Mount
Weight
7 oz (E-1 Single 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

Really impressed thus far . . . . a rock solid replacement for old mechanical gauges.
Great product. [I chose EI because] you have no competition.
Love the look and having every piece of info in front of me… Better price and look [versus competition].
Good support when we called with particular questions with the initial setup. We liked the functions and the price.
We have other EI products currently and have always been satisfied.
[Customer Support was] very responsive and helpful. [I heard about EI through] advice from others. Just about everyone I asked about the CGR-30 loves it and your company.
The [unit] is easy to read and quick to respond. I have multiple EI units and have had good experiences with all.
Works Great!
I have been flying with EI instruments for over 20 years. I purchased the CGR-30P to update my engine instruments into one modern package.
Works great!
Good engineering support.
Excellent tech help…