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
8am–4:30pm PST M–F
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S-50 External 300 Amp Shunt
S-50
$48

The OPT-1 is more readable than the factory Cessna oil pressure/temp gauges.
I like the 3.125″ format. Plus there are no hidden costs of probes you have to buy later…
Love it!
Looks Great, and intuitive to use. Packs a lot of information in a tight area, yet, I don’t need my glasses to read it!
Works great!
I really enjoy your products [because they are] simple and easy to use and affordable.
Easy installation.
Compact, precise, awesome!
The CGR-30P is working great and it’s an outstanding addition to our avionics package.
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!
Easy Install.
Good reviews and I don’t have to modify my panel. Additionally, the reps at Oshkosh were extremely helpful and answered all my questions.