Very impressed with the clarity and readability of the CGR-30P gauge.
- Customer
Richard K. from New York
- Aircraft
Piper PA-28-181 Archer III
- 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.

Very impressed with the clarity and readability of the CGR-30P gauge.
Works Great! Getting used to menu the more I fly — Nice addition to airplane.
Best sales team.
Nice Instrument, all the electrical information I need in one place. [I chose EI for its] performance and price.
Great product. [I chose EI because] you have no competition.
Works Great!
Great service. [I replaced/upgraded] unit in aircraft.
[I chose the CGR-30P because of its] ease of use.
Safety and simplicity!
Great Service.
Some of the best customer service in the avionics network that I’ve had the pleasure of dealing with. [I chose EI because of the] features, simplicity, and the user-friendly platform.
The OPT-1 is more readable than the factory Cessna oil pressure/temp gauges.