The equipment is fantastic, very intuitive, and easy to use.
- Customer
Gregory S. From Brazil
- Aircraft
Air Tractor AT-502A
- EI Instrument
8am–4:30pm PST M–F
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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

The equipment is fantastic, very intuitive, and easy to use.
Excellent Service. Superb Product.
Easy to install and everything you need inside package. Good price, nice instrument and simple to use.
Beautiful graphic display, easy to use, perfect automatic dimming!
Awesome Product! Great product and fantastic support!
Nice bright display.
Customer Service is far superior… with an excellent record of resolving … technical issues.
Much better quality with the bezel and buttons and knobs [vs. competition]. Also much easier to navigate and add fuel.
Straight up install no issues. Works as advertised!
[EI’s FP-5L with Aux Carb Temp Option] gave me fuel flow & Carby temp & was easy to retrofit.
Sharp-looking gauges. [I chose EI because of your] reputation.
Always very friendly and knowledgeable staff. Over time, I have purchased six different EI instruments for the two planes I own. The instruments are easy to install, very accurate, and dependable. EI has very stable and easy-to-operate instruments.