“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!”

Customer:  Charles M. from South Dakota

Aircraft:  Cessna 150F

EI Instrument: OPT-1 Oil Pressure and Temp Instrument

Date:  3/21/2023

“The FP-5l I had installed is easy to use and so accurate it’s almost scary. When I find a company that produces a product that good I stick with them. The fact that these instruments also look so darn good didn’t hurt either.”

Customer:  Charles M. from South Dakota

Aircraft:  Cessna 150F

EI Instrument:  FP-5L Fuel Computer

Date:  3/21/2023

“Good engineering support.”

Customer:  Richard B. from New Mexico

Aircraft: Luscombe Model 8E Silvaire Deluxe

EI Instrument:  CGR-30P Engine Monitor – Premium

Date:  3/15/2023

“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.”

Customer:  Casey R. from Oklahoma

Aircraft:  Cessna 172M

EI Instrument: OPT-1 Oil Pressure and Temp Instrument

Date:  3/14/2023

“Nice experience working with [sales]… to configure my gauges.” Reason I chose EI? “Past experience with EI.”

Customer:  Clark M. from New Hampshire

Aircraft: Beechcraft Bonanza C35

EI Instrument:  CGR-30C Cluster Guage Replacement

Date:  3/9/2023

“Excellent installation instructions [&] recommend[ed] by others.”

Customer:  Ben C. from Alaska

Aircraft:  Piper PA-22-160

EI Instrument: OPT-1 Oil Pressure and Temp Instrument

Date:  3/8/2023

“Great customer service!”

Customer:  Jeremy B. from Arizona

Aircraft:  Beech V35A

EI Instrument:  CGR-30 Combo Package

Date:  3/4/2023

“Great… price [&] support”

Customer:  Harry V.D.H. from New Zealand

Aircraft:  Piper PA-28R-200 Arrow II

EI Instrument:  CGR-30 Combo Package

Date:  3/2/2023

“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: R-1 RPM Tachometer Instrument

Date:  2/27/2023

“I won a FP-[5]L and had it installed in my c150. I was/am impressed with the accuracy and ease of operation of the FP. I wanted a new tach and I trust (and verified) that the EI R-1… would be my best choice. I am not a rich man. These instruments are affordable and incredibly accurate. Already planning my next buy from EI.”

Customer:  Charles M. from South Dakota

Aircraft:  Cessna 150F

EI Instrument: R-1 RPM Tachometer Instrument

Date:  2/21/2023