. . . looks really good! Friends have these installed and give very good reviews.
- Customer
David W. from Arizona
- Aircraft
Cessna 150
- EI Instrument
8am–4:30pm PST M–F
[mbhi location="Main"]

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

. . . looks really good! Friends have these installed and give very good reviews.
I have been installing avionics since 1996. This was THE BEST wire harness I have ever seen!
Amazing aftermarket service. Good quality products
Your customer service is excellent and your products are top quality!
Nice unit. EI is the best!
Have had EI instruments in my past plane and current plane and they always performed flawlessly.
Electronics International is an exceptional company with exceptional products… Oregon company, great products and great people.
Installation went great. The Fuel Flow is dead on.
You folks do a great job. Keep up the good work.
Installed digital volt/amp gauge in PA 28-181. Great unit easy to install. Much better than original.
Straight up install no issues. Works as advertised!
MVP-50 is a really great product