I really appreciate the quality of communication about my order. The instrument offers the right functionality (being a primary instrument) in the right form factor for my application.
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
Love the situational awareness that the CGR-30 Combo gives me. Easy to read and understand displayed information.
Excellent Service, superb product.
- Customer
Steven N. from Colorado
- Aircraft
Cessna 182E Skylane
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We love our MVP-50P w/ its crisp, intuitive display and ease of operation.
I have seen your products in other aircraft and have seen their reliability.
- Customer
Juan P. from British Columbia, Canada
- Aircraft
Cessna 172M Skyhawk
- EI Instrument
Phone service for ordering was quick and easy. Shipping was quick.
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
Gauge works great! Very happy with purchase.
- Customer
Aryan M. from California
- Aircraft
American Champion 8KCAB
- EI Instrument
Great service. [I replaced/upgraded] unit in aircraft.
- Customer
Adam M. from NSW, Australia
- Aircraft
Piper PA-28-181 Cherokee
- EI Instrument
Installed digital volt/amp gauge in PA 28-181. Great unit easy to install. Much better than original.
The FP-5l I had installed is easy to use and so accurate it’s almost scary. When I find a company that produces a product that good I stick with them. The fact that these instruments also look so darn good didn’t hurt either.
Every person was willing to help me when I needed and the whole purchasing process was smooth. [And, E.I.] was recommended by my mechanic.