Currently have multiple EI Instruments in our aircraft. Quality and reliability are key.
- Customer
Jason Y. from Arizona
- Aircraft
Cessna 182A
- EI Instrument
8am–4:30pm PST M–F
Sorry, We’re Closed

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
Currently have multiple EI Instruments in our aircraft. Quality and reliability are key.
Straightforward installation instructions, great wiring harness. Quick answers from Tech Support.
Good to go! Excellent instructions and easy install. Outstanding instrument!
Great product. [I chose EI because] you have no competition.
I like the 3.125″ format. Plus there are no hidden costs of probes you have to buy later…
The CGR-30P is working great and it’s an outstanding addition to our avionics package.
Haven’t used it yet, but we are excited to & Love the way it looks!!
Great product at a great price …. (and) reliability.
A clear capable replacement for a cluster gauge. Vivid colors used which make it easy to see engine status at a glance.
Easy install, good product. [I chose EI because of my] experience with [the] product.
Good engineering 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.