The [unit] is easy to read and quick to respond. I have multiple EI units and have had good experiences with all.
- Customer
Thomas C. from Maine
- Aircraft
Maule M-5-235C Luna Rocket
- 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.

The [unit] is easy to read and quick to respond. I have multiple EI units and have had good experiences with all.
Safety and simplicity!
Good reviews and I don’t have to modify my panel. Additionally, the reps at Oshkosh were extremely helpful and answered all my questions.
Nice unit. EI is the best!
EI representatives… have been very helpful, truthful, and knowledgeable… We had no idea, that a few weeks later [after our purchase], 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.
Easy to install and everything you need inside package. Good price, nice instrument and simple to use.
I have worked with your products before and I like them.
Installation went great. The Fuel Flow is dead on.
I have seen your products in other aircraft and have seen their reliability.
Pleasure supporting folks with like values.
Staff appears to be very helpful when assistance is needed in verifying information. Heard good things about it [EI] from personal known aircraft owners.
E.I. Always Exceeds Expectations!