Easiest company to deal with and an awesome product! Price, Certified for Primary, and Features.
- Customer
Justin E. from California
- Aircraft
Piper PA-30 Twin Comanche
- EI Instrument
8am–4:30pm PST M–F
Sorry, We’re Closed
A-102 Adapter Plate
A-102
$28
Lead Time: Usually ships within 2–3 business days.

Easiest company to deal with and an awesome product! Price, Certified for Primary, and Features.
My mechanic said that your product was very good, and he was correct.
Great Service.
Nice bright display.
Some of the best customer service in the avionics network that I’ve had the pleasure of dealing with. [I chose EI because of the] features, simplicity, and the user-friendly platform.
Just about to begin flying with the EI MVP-50P, so no in-flight feedback yet. But I did study the user manual, then sat in my plane going through the screens, menus, etc. It was very easy and intuitive to locate everything, so I’m confident that it will become second nature to do this in flight… Very happy with all interactions with EI.
Very accurate readings! The “analog” style LED arc means at-a-glance tach readings that allow the pilot to keep his attention where it matters, not reading a gauge. The digital readout is great for maintenance checks and mag drop tests.
Good to go! Excellent instructions and easy install. Outstanding instrument!
Simple and Easy.
Pleasure supporting folks with like values.
Love my new engine monitoring system.
Great product. [I chose EI because] you have no competition.