EI has the best customer service of any company that I’ve ever dealt with.
- Customer
Greg J. from Georgia
- Aircraft
Beechcraft C23 Sundowner
- 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-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
EI has the best customer service of any company that I’ve ever dealt with.
Works great, super install.
All looks very nice. [I chose E.I. because of] previous experience.
The equipment is fantastic, very intuitive, and easy to use.
Simple and Easy.
Straightforward installation instructions, great wiring harness. Quick answers from Tech Support.
I like how the kits ship with everything needed for install and the wire labeling was very helpful.
Very impressed with the clarity and readability of the CGR-30P gauge.
Excellent installation instructions [&] recommend[ed] by others.
Works great!
You folks do a great job. Keep up the good work.
Nice Instrument, all the electrical information I need in one place. [I chose EI for its] performance and price.