Looks Great, and intuitive to use. Packs a lot of information in a tight area, yet, I don’t need my glasses to read it!
- Customer
Bill M. from Connecticut
- Aircraft
American Champion Citabria 7KCAB
- 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

Looks Great, and intuitive to use. Packs a lot of information in a tight area, yet, I don’t need my glasses to read it!
Your sales and support teams are very helpful.
The display is large and clear. The functions are simple and easy to use. Great purchase decision.
EI’s team is great; you guys are the best.
[I chose EI because they offer a] certified replacement vs. back-up only and they look great.
All looks very nice. [I chose E.I. because of] previous experience.
I have heard only great words about EI… Won’t be able to install till at least April but I know you are very helpful when it comes to questions.
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.
Nice experience working with [sales]… to configure my gauges.” Reason I chose EI? “Past experience with EI.
Good equipment at a good price. I have used your products before and have had great success.
Good engineering support.
Great product at a great price …. (and) reliability.