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
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.

I have seen your products in other aircraft and have seen their reliability.
I love my new EGT. Very accurate and has ambient air temperature so I know how cold my engine is before I start it. Easy to see lighting.
Love it!
We liked the price and the reputation of your company.
Installation went great. The Fuel Flow is dead on.
Your company shares a good reputation!
Your (customer) service is excellent!
Easiest company to deal with and an awesome product! Price, Certified for Primary, and Features.
Always a pleasure to do business with EI. Products ship rapidly. I have been using your products for 20+ years.
Love my new engine monitoring system.
Keep it up. I’ll keep coming back.
Very affordable… great installation instructions. [I chose EI because of its] price point, certified primary.