Customer Service is far superior… with an excellent record of resolving … technical issues.
- Customer
C.J. R. from North Carolina
- Aircraft
Mooney M20C Ranger
- 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
Customer Service is far superior… with an excellent record of resolving … technical issues.
Looks great. Works great.
Nice experience working with [sales]… to configure my gauges.” Reason I chose EI? “Past experience with EI.
Phone service for ordering was quick and easy. Shipping was quick.
This is the second product purchased and I am completely satisfied.
Good equipment at a good price. I have used your products before and have had great success.
Very impressed with the clarity and readability of the CGR-30P gauge.
Easy install, good product. [I chose EI because of my] experience with [the] product.
You folks do a great job. Keep up the good work.
I have been flying with EI instruments for over 20 years. I purchased the CGR-30P to update my engine instruments into one modern package.
The [unit] is easy to read and quick to respond. I have multiple EI units and have had good experiences with all.
Easy to install and everything you need inside package. Good price, nice instrument and simple to use.