Safety and simplicity!
- Customer
Andrew L. from Florida
- Aircraft
Piper PA-28-235 Cherokee Pathfinder
- EI Instrument
8am–4:30pm PST M–F
Sorry, We’re Closed
CP-1A LED Intensity Control Pot
-
$72
Lead Time: Usually ships within 2–3 business days.

Safety and simplicity!
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.
Very impressed with the clarity and readability of the CGR-30P gauge.
The older EI ultimate engine analyzer that came with my plane that I bought 7 years ago has always worked flawlessly.
Excellent tech help…
Looks Great, and intuitive to use. Packs a lot of information in a tight area, yet, I don’t need my glasses to read it!
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.
Haven’t used it yet, but we are excited to & Love the way it looks!!
Straightforward installation instructions, great wiring harness. Quick answers from Tech Support.
I won a FP-[5]L and had it installed in my c150. I was/am impressed with the accuracy and ease of operation of the FP. I wanted a new tach and I trust (and verified) that the EI R-1… would be my best choice. I am not a rich man. These instruments are affordable and incredibly accurate. Already planning my next buy from EI.
[The EAC-1] looks great running… The wiring harness was very well fabricated. Installation was easy- fit perfectly in an existing hole in panel. The brightness of the display is excellent.
Really glad to have accurate oil psi and temp! [It’s a] match with previous [EI] installs.