Outstanding support. From the friendly demeanor of whoever answers the phone to all the way to [their sales representative]. Your CGR-30 series is superb.
P-120 – Oil Temp Probe
Questions?
8am–4:30pm PST M–F
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Product Overview

Reliable Probes

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.
Prices
Retail Prices
Packages include:
- P-120 Oil Temp Probe
- Installation Instructions
Description
Package
Retail Price
P-120 Oil Temp Probe
-
$128

Specifications
Specifications
Common Uses
Oil Temp Readings
Type
Screw-in, 5/8″-18
Operating Temp Range
-80°F to 1,700°F
FAA Certifications
TSO’d, PMA’d
Configuration
Type K, Ungrounded
Material
Brass
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
I like the 3.125″ format. Plus there are no hidden costs of probes you have to buy later…
- Customer
Anthony H. from Oregon
- Aircraft
Piper PA-18 Super Cub
- EI Instrument
Good support when we called with particular questions with the initial setup. We liked the functions and the price.
Always built well. Always dependable. Been using & relying on EI equip for over 35 years!
I installed a VA-1A Volts/Amps Insturment [sic] in my 1970 V35B to replace the original analog amp meter. What a great dual purpose digital gauge! Installation was simple and the product is very well made. It goes well next to my SuperClock I installed a couple of years ago. EI makes great products and this one will satisfy the most discriminating owner.
- Customer
Brewer P. from Mississippi
- Aircraft
Beechcraft Bonanza V35B
- EI Instrument
This is the second product purchased and I am completely satisfied.
Some of the best customer service in the avionics network that I’ve had the pleasure of dealing with. [I chose EI because of the] features, simplicity, and the user-friendly platform.
Easy to install, and the CGR was set up to my aircraft’s exact specifications.
Very easy to install and directions were straight-forward.
- Customer
Paul H. from Oklahoma
- Aircraft
Piper PA-28-151 Cherokee Warrior
- EI Instrument
. . . the kit looks very well built and the company I fly for . . . has had a very good experience with your products and your customer support.
Very happy with our new tachometer!
Good equipment at a good price. I have used your products before and have had great success.
- Customer
Ryan M. from Oregon
- Aircraft
Cessna 172L
- EI Instrument