Good value and functionality. I’ve used your instruments on multiple aircraft thru the years with no issues. These are a nice upgrade over the original instruments in most older aircraft.
P-120 – Oil Temp Probe
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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
Sales reps have been very friendly and helpful.
Love the look and having every piece of info in front of me… Better price and look [versus competition].
Awesome Tech Support. Like the functions it supports and the fit and look in the panel.
- Customer
Brian M. from California
- Aircraft
Mooney M20F Executive 21
- EI Instrument
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.
Great tech support. Someone always answers and gives accurate concise information.
- Customer
Thomas M. From Georgia
- Aircraft
Mooney M20C Ranger
- EI Instrument
Great product. So easy to read compared to the originals.
We liked the price and the reputation of your company.
- Customer
Roy C. From Kentucky
- Aircraft
Piper PA-28-235 Cherokee Pathfinder
- EI Instrument
Nice bright display.
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
[I chose EI because of its] reputation [and the] quality and appearance of the instrument.
- Customer
Denis F. from Alberta Canada
- Aircraft
Piper PA-28R-201T Turbo Arrow III
- EI Instrument
Always a pleasure to do business with EI. Products ship rapidly. I have been using your products for 20+ years.