Great system and great benefit having everything in one place. Love it.
- Customer
Gary D. from OK
- Aircraft
PA28R-200
- EI Instrument
8am–4:30pm PST M–F
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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-4 kit includes four (4) P-110F Fast Response EGT Probes.

E-4 EGT 4-Cylinder Package
E-4
$880
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-4 EGT Instrument 4-Cylinders 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

Great system and great benefit having everything in one place. Love it.
E.I. Always Exceeds Expectations!
Excellent installation instructions [&] recommend[ed] by others.
The tach looks and operates amazing. Extremely accurate.
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.
Customer support is great (and the) user interface is superior to other products.
Love my new engine monitoring system.
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.
 I have other EI products and your support is great.
Nice product and good product support!
Great… price [&] support
Easy install, good product. [I chose EI because of my] experience with [the] product.