The display is large and clear. The functions are simple and easy to use. Great purchase decision.
CP-1A – LED Intensity Control Pot
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Product Overview
Prices
Retail Prices
Included in the package:
- CP-1A
- OPT-2 Connectors (3)
- 0.05″ Hex Wrench (1)
- CP-1A Instructions
Description
Package
Retail Price
CP-1A LED Intensity Control Pot
-
$72
Lead Time: Usually ships within 2–3 business days.

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Testimonials
Customer Testimonials
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
Your (customer) service is excellent!
- Customer
Thomas T. from Washington
- Aircraft
Piper PA-18-150
- EI Instrument
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.
- Customer
Ryan O. from North Dakota
- Aircraft
Cessna 182D
- EI Instrument
Great customer service!
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
Really impressed thus far . . . . a rock solid replacement for old mechanical gauges.
- Customer
Eric H. from Mississippi
- Aircraft
Beechcraft C23 Sundowner
- EI Instrument
Pleasure supporting folks with like values.
I have seen your products in other aircraft and have seen their reliability.
- Customer
Juan P. from British Columbia, Canada
- Aircraft
Cessna 172M Skyhawk
- EI Instrument
Good to go! Excellent instructions and easy install. Outstanding instrument!
Have had EI instruments in my past plane and current plane and they always performed flawlessly.
- Customer
Gary M. from California
- Aircraft
Cessna 182Q Skylane
- EI Instrument
I really appreciate the quality of communication about my order. The instrument offers the right functionality (being a primary instrument) in the right form factor for my application.