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
Sorry, We’re Closed



VI-2µFA SureFly Interface
VI-2uFA
$76
Two VI-2µFA SureFly Interface
VI-2uFA-WCP
$152
Four VI-2µFA SureFly Interface
VI-2uFA-2
$304
Lead Time: Usually ships within 2–3 business days.

The OPT-1 is more readable than the factory Cessna oil pressure/temp gauges.
[Customer service] is great!
Great service and support for great products!
I really enjoy your products [because they are] simple and easy to use and affordable.
[I chose EI because they offer a] certified replacement vs. back-up only and they look great.
Phone service for ordering was quick and easy. Shipping was quick.
Always built well. Always dependable. Been using & relying on EI equip for over 35 years!
Very easy to install and directions were straight-forward.
Outstanding support. From the friendly demeanor of whoever answers the phone to all the way to [their sales representative]. Your CGR-30 series is superb.
Pleasure supporting folks with like values.
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.
Sales reps have been very friendly and helpful.