Great tech support. Someone always answers and gives accurate concise information.
- Customer
Thomas M. From Georgia
- Aircraft
Mooney M20C Ranger
- 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-2 connector. The OLC-2 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.
P-101 CHT Probe*
-
$128
* To be used with the A-101 CHT Adapter, 700°F Max.

Type
Military Bayonet
Operating Temp Range
-80°F to 700°F Max.
FAA Certifications
TSO’d, PMA’d
Common Uses
CHT Readings
Configuration
Type K, Ungrounded
Operating Range
700°F Max
Great tech support. Someone always answers and gives accurate concise information.
Great customer service!
Sales reps have been very friendly and helpful.
Beautiful graphic display, easy to use, perfect automatic dimming!
Incredible customer service.
Responsive customer service, kudos to [customer service].
Works Great! Getting used to menu the more I fly — Nice addition to airplane.
We’ve worked with EI for years and love the product and support always received. Quality & dependability.
All looks very nice. [I chose E.I. because of] previous experience.
Great to have all 6 egt’s, installation was straightforward. [I chose E.I. because of] price and availability.
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.
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.