Very affordable… great installation instructions. [I chose EI because of its] price point, certified primary.
- Customer
Benjamin T. from South Carolina
- Aircraft
Piper PA-28-181 Archer II
- EI Instrument
8am–4:30pm PST M–F
[mbhi location="Main"]
A-102 Adapter Plate
A-102
$28
Lead Time: Usually ships within 2–3 business days.

Very affordable… great installation instructions. [I chose EI because of its] price point, certified primary.
Good equipment at a good price. I have used your products before and have had great success.
Gauge works great! Very happy with purchase.
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.
Great product at a great price …. (and) reliability.
Good product; company is eager & willing to help
Your customer service is excellent and your products are top quality!
We’ve worked with EI for years and love the product and support always received. Quality & dependability.
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.
[I chose EI because of its] Reputation and value.
The CGR-30P is working great and it’s an outstanding addition to our avionics package.
[I chose EI because they offer a] certified replacement vs. back-up only and they look great.