The R-1-6 is a great instrument. [I chose EI because of] quality.
- Customer
J. Gregg from North Carolina
- Aircraft
Cessna 172
- EI Instrument
8am–4:30pm PST M–F
Sorry, We’re Closed
CP-1A LED Intensity Control Pot
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$72
Lead Time: Usually ships within 2–3 business days.

The R-1-6 is a great instrument. [I chose EI because of] quality.
I have been flying with EI instruments for over 20 years. I purchased the CGR-30P to update my engine instruments into one modern package.
I installed a VA-1A Volts/Amps Insturment [sic] in my 1970 V35B to replace the original analog amp meter. What a great dual purpose digital gauge! Installation was simple and the product is very well made. It goes well next to my SuperClock I installed a couple of years ago. EI makes great products and this one will satisfy the most discriminating owner.
Nice unit. EI is the best!
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.
Great product at a great price …. (and) reliability.
Good engineering support.
[I chose EI because of its] reputation [and the] quality and appearance of the instrument.
EI shines in providing excellent customer support and its products are reliable, affordable and of high quality.
Works great!
Have had EI instruments in my past plane and current plane and they always performed flawlessly.
After a full IFR install on my Cessna 175, my two favorite instruments without question is the CGR-30 Combo set. Simple and customizable, the data is invaluable!