I have never had an issue with any EI products… it looks fantastic on the panel.
- Customer
Thomas A. from Oklahoma
- Aircraft
Beechcraft Bonanza E35
- EI Instrument
8am–4:30pm PST M–F
Sorry, We’re Closed
S-300 External 300 Amp Shunt
S-300
$60

I have never had an issue with any EI products… it looks fantastic on the panel.
Installing [EI’s FP-5L] in my RV 6. . . owned an FP-5L 6 years ago in a Cessna 206 on floats in a commercial operation in Alaska. Getting every ounce of payload, and coming home across Cook Inlet with the Cessna gas gauges near or on empty, I spent a lot of time explaining the benefits of the Fuel flow gauge… and reassured my passengers there were 12 gallons of fuel on board. I’m a believer…
Great product. [I chose EI because] you have no competition.
Easy to install, and the CGR was set up to my aircraft’s exact specifications.
Customer service always quick and easy. [I chose E.I. because of] price and being recommended by friends.
Excellent Service. Superb Product.
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.
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.
We have other EI products currently and have always been satisfied.
Your company shares a good reputation!
People [at EI] were great to work with.
This is the second product purchased and I am completely satisfied.