EI shines in providing excellent customer support and its products are reliable, affordable and of high quality.
- Customer
Fernando D. from Iowa
- Aircraft
Bonanza G35
- EI Instrument
8am–4:30pm PST M–F
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A-102 Adapter Plate
A-102
$28
Lead Time: Usually ships within 2–3 business days.

EI shines in providing excellent customer support and its products are reliable, affordable and of high quality.
Awesome product. Fast easy installation.
Great Product, that provides a lot of very helpful engine data in an easy to use and see display! We are already finding cylinder cooling issues that we would’ve never known about before, and probably explains why we’ve had to replace that specific cylinder in the past. EI customer service on questions on how we wanted to set ours up was very helpful and positive. The CGR-30 had quite a few positive reviews online from other users.
Nice bright display.
Installed digital volt/amp gauge in PA 28-181. Great unit easy to install. Much better than original.
The R-1-6 is a great instrument. [I chose EI because of] quality.
The [unit] is easy to read and quick to respond. I have multiple EI units and have had good experiences with all.
[I chose EI because of its] Reputation and value.
Straightforward installation instructions, great wiring harness. Quick answers from Tech Support.
Really glad to have accurate oil psi and temp! [It’s a] match with previous [EI] installs.
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.
Always a pleasure to do business with EI. Products ship rapidly. I have been using your products for 20+ years.