People [at EI] were great to work with.
- Customer
Andrew & Carri Ann M. from Alaska
- Aircraft
Piper PA-18-150 Super Cub
- EI Instrument
8am–4:30pm PST M–F
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CP-1A LED Intensity Control Pot
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$72
Lead Time: Usually ships within 2–3 business days.

People [at EI] were great to work with.
Installed digital volt/amp gauge in PA 28-181. Great unit easy to install. Much better than original.
I have several EI units in my aircraft and have been very pleased with their reliability over the years. The other great part, besides the unit themselves, is the support from you all. Thank you for your support over the years… I chose IE for your reputation for quality and pricing. I have been very pleased with my units. My graphic engine analyzer, fuel flow meter, volt/amp meter, RPM and now Manifold gauge.
The CGR-30P is working great and it’s an outstanding addition to our avionics package.
Excellent Service. Superb Product.
Easy installation.
The layout and quality is impressive.
Excellent installation instructions [&] recommend[ed] by others.
I have been installing avionics since 1996. This was THE BEST wire harness I have ever seen!
Your company shares a good reputation!
This is the third EI instrument I am having installed in “Lillybelle .” I am impressed with the ease of operation, the affordability and the accuracy of each of these instruments. For years I trusted my life to 50+ year old gauges. Now I don’t have to. What a relief!
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.