Really impressed thus far . . . . a rock solid replacement for old mechanical gauges.
- Customer
Eric H. from Mississippi
- Aircraft
Beechcraft C23 Sundowner
- 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.

Really impressed thus far . . . . a rock solid replacement for old mechanical gauges.
Great product. So easy to read compared to the originals.
Works Great! Love it!
Very happy with our new tachometer!
I have heard only great words about EI… Won’t be able to install till at least April but I know you are very helpful when it comes to questions.
Always very friendly and knowledgeable staff. Over time, I have purchased six different EI instruments for the two planes I own. The instruments are easy to install, very accurate, and dependable. EI has very stable and easy-to-operate instruments.
I like being able to get a hold of a technical expert immediately when calling into the main EI phone number… The build quality of the sensors, display unit and EDC seem very good… I appreciate the business practices of EI and have had an EI R-1 Tachometer which has worked flawlessly for the past 20 years.
Nice unit. EI is the best!
Great tech support. Someone always answers and gives accurate concise information.
EI has the best customer service of any company that I’ve ever dealt with.
Very complete and thorough packaging. Well-prepped wiring harnesses. Quick and efficient turnaround time. Great communication throughout the process.
Sharp-looking gauges. [I chose EI because of your] reputation.