Very happy with our new tachometer!
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.

Specifications
Videos
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Documents & Manuals
Testimonials
Customer Testimonials
Straight up install no issues. Works as advertised!
- Customer
John L. from Georgia
- Aircraft
Piper PA-28-151 Cherokee Warrior
- EI Instrument
Tach fits my panel nicely, was easy to install.
This is the second product purchased and I am completely satisfied.
Simple and Easy.
- Customer
Aaron H. from Washington
- Aircraft
Cessna 140
- EI Instrument
[I chose the CGR-30P because of its] ease of use.
- Customer
Chris M. from Pennsylvania
- Aircraft
Piper PA-28 Cherokee
- EI Instrument
Good to go! Excellent instructions and easy install. Outstanding instrument!
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.
- Customer
Charles M. from South Dakota
- Aircraft
Cessna 150F
- EI Instrument
Your product didn’t feel cheaply made. Overall much better quality with the bezel and buttons and knobs. Also much easier to navigate and add fuel.
- Customer
Justin R. from Texas
- Aircraft
Cessna T207A Turbo Skywagon
- EI Instrument
Love my new engine monitoring system.
- Customer
Tyler P. from Alberta, Canada
- Aircraft
Cessna 185F
- EI Instrument
I have other EI products and your support is great.
- Customer
Steven K. from FL
- Aircraft
C150l
- EI Instrument
Customer support is great (and the) user interface is superior to other products.
- Customer
Earl L. from Idaho
- Aircraft
Cessna 170B
- EI Instrument