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
8am–4:30pm PST M–F
Sorry, We’re Closed
A-102 Adapter Plate
A-102
$28
Lead Time: Usually ships within 2–3 business days.

Easiest company to deal with and an awesome product! Price, Certified for Primary, and Features.
Always built well. Always dependable. Been using & relying on EI equip for over 35 years!
Really impressed thus far . . . . a rock solid replacement for old mechanical gauges.
The installation was straightforward and quite easy. Reliability and accuracy far exceed the original [aircraft’s] oil pressure/temperature systems. Also, the price was about a third of the cost to replace the gauge cluster.
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.
Currently have multiple EI Instruments in our aircraft. Quality and reliability are key.
Great customer service!
Awesome product. Fast easy installation.
The [unit] is easy to read and quick to respond. I have multiple EI units and have had good experiences with all.
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!
Good reviews and I don’t have to modify my panel. Additionally, the reps at Oshkosh were extremely helpful and answered all my questions.
Love the situational awareness that the CGR-30 Combo gives me. Easy to read and understand displayed information.