Gauge works great! Very happy with purchase.
- Customer
Aryan M. from California
- Aircraft
American Champion 8KCAB
- 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.
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 3–5 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
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.
Easy install and great gauges. Previous experience showed that EI’s units were… great prices and even better instruments. Being able to install the gauge as a primary instrument was a major plus.
- Customer
Logan from Montana
- Aircraft
Cessna 172B
- EI Instrument
Currently have multiple EI Instruments in our aircraft. Quality and reliability are key.
- Customer
Jason Y. from Arizona
- Aircraft
Cessna 182A
- EI Instrument
I have never had an issue with any EI products… it looks fantastic on the panel.
- Customer
Thomas A. from Oklahoma
- Aircraft
Beechcraft Bonanza E35
- EI Instrument
Simple and Easy.
- Customer
Aaron H. from Washington
- Aircraft
Cessna 140
- EI Instrument