Much better quality with the bezel and buttons and knobs [vs. competition]. Also much easier to navigate and add fuel.
- Customer
Justin R. from Texas
- Aircraft
Cessna T207A Turbo Skywagon
- 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

Much better quality with the bezel and buttons and knobs [vs. competition]. Also much easier to navigate and add fuel.
Straightforward installation instructions, great wiring harness. Quick answers from Tech Support.
After enquiring through (one of) your dealers and calling EI directly it was clear that you provided good customer service and would likely not drop the ball on tech support, and so far I have been right.
Sharp-looking gauges. [I chose EI because of your] reputation.
[I chose EI because of its] reputation [and the] quality and appearance of the instrument.
EI has the best customer service of any company that I’ve ever dealt with.
I have been installing avionics since 1996. This was THE BEST wire harness I have ever seen!
My mechanic said that your product was very good, and he was correct.
Phone service for ordering was quick and easy. Shipping was quick.
Safety and simplicity!
Excellent Service, superb product.
Always a pleasure to do business with EI. Products ship rapidly. I have been using your products for 20+ years.