. . . looks really good! Friends have these installed and give very good reviews.
- Customer
David W. from Arizona
- Aircraft
Cessna 150
- EI Instrument
OPT-1 Oil Pressure and Temp Instrument
FAA Approved
- FAA STC’d, TSO’d as a Primary Replacement.
Interpret Your Readings Faster
- You won’t need your glasses to view the large backlit LCD.
- Redlines and Cautionary zones will catch your attention as the Red and Yellow LEDs light up on the analog arcs.
Accurate, Dependable & Easy To Use
- Electronics International consistently has been a leader in digital engine instrumentation since 1979.
Questions?
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Product Overview
Prices
Retail Prices
Included in the package:
- OPT-1 Oil Pressure & Temperature Instrument
- 8′ Thermocouple Extension Cable
- P-120 Oil Temperature Probe
- PT-100GA Pressure Transducer
- Wire Harness
- Installation/Operating Instructions
- STC
Description
Package
Retail Price
OPT-1 Package
OPT-1
$760
Lead Time: Usually ships within 10-12 business days.
Specifications
Specifications
Dimensions
2.50″ H x 2.50″ W x 3.65″ D , 2.25″ Bezel
Weight
10 oz (OPT-1 Oil Pressure & Temperature Instrument Only)
Power Requirements
7.5 to 35 Volts, Typical: 0.3 amps @ 12 Volts
Display
- Viewable in direct and indirect sunlight.
- Two 90 degree analog arcs for quick reference.
Backlight
Fully backlit and dimmable for night flights.
Certifications
FAA TSO’d, STC’d
Videos
Product Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
EI’s products are the only ones we recommend to our customers.
- Customer
Hugo T. from Florida
- Aircraft
Cessna 177B
- EI Instrument
It works very well; easy operation.
- Customer
Socrates K. , Cyprus
- Aircraft
Cessna F172H
- EI Instrument
Really impressed thus far . . . . a rock solid replacement for old mechanical gauges.
- Customer
Eric H. from Mississippi
- Aircraft
Beechcraft C23 Sundowner
- EI Instrument
Gauge works great! Very happy with purchase.
- Customer
Aryan M. from California
- Aircraft
American Champion 8KCAB
- EI Instrument
The OPT-1 is more readable than the factory Cessna oil pressure/temp gauges.
- Customer
Daniel N. From California
- Aircraft
Cessna 175 Skylark
- EI Instrument
Your products always work great! Great customer service and a quality product that we have used for years.
- Customer
Brenton C. from Tennessee
- Aircraft
Cessna 172M
- EI Instrument
Excellent installation instructions [&] recommend[ed] by others.
- Customer
Ben C. from Alaska
- Aircraft
Piper PA-22-160
- EI Instrument
The installation was straightforward and quite easy. Reliability and accuracy far exceed the original [aircraft’s] oil pressure/temperature systems. Also, the price was about a third of the cost to replace the gauge cluster.
- Customer
Casey R. from Oklahoma
- Aircraft
Cessna 172M
- EI Instrument
This is the third EI instrument I am having installed in “Lillybelle .” I am impressed with the ease of operation, the affordability and the accuracy of each of these instruments. For years I trusted my life to 50+ year old gauges. Now I don’t have to. What a relief!
- Customer
Charles M. from South Dakota
- Aircraft
Cessna 150F
- EI Instrument
Really glad to have accurate oil psi and temp! [It’s a] match with previous [EI] installs.
- Customer
Nathan V. from Alaska
- Aircraft
Cessna 172C
- EI Instrument
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.