Very easy to install. Harness is clearly marked. Instrument worked first time. The instrument is intuitive and easy to use.
- Customer
William F. from Maryland
- Aircraft
Mooney M20C Ranger
- 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.

Very easy to install. Harness is clearly marked. Instrument worked first time. The instrument is intuitive and easy to use.
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.
[Customer service] is great!
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.
I have worked with and installed a few of your competitors’ and your systems. EI instruments’ ease of use and installation make these systems my go-to choice and number one recommendation to customers.
People [at EI] were great to work with.
Awesome Product! Great product and fantastic support!
Works Great! Getting used to menu the more I fly — Nice addition to airplane.
Working with EI representatives from the OSHKOSH show and sales representative has been a pleasant and positive experience. They have been very helpful, truthful and knowledgeable about EI’s products. I have yet to see the MVP-50P in action in our plane. Waiting for the Top Overhaul to be completed. We are glad we secured your product at the airshow. We had no idea, that a few weeks later, we would need to have a Top Overhaul. What great timing! Having your engine monitor installed in our plane will hopefully help us keep it out of the shop for further engine repairs.
Safety and simplicity!
Big improvement over old cluster (gauges). Good customer service.
Always built well. Always dependable. Been using & relying on EI equip for over 35 years!