Easy to install and everything you need inside package. Good price, nice instrument and simple to use.
- Customer
Pantelis K. from Greece
- Aircraft
Piper Seneca I
- EI Instrument
8am–4:30pm PST M–F
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S-300 External 300 Amp Shunt
S-300
$60

Easy to install and everything you need inside package. Good price, nice instrument and simple to use.
Compact, precise, awesome!
EI has the best customer service of any company that I’ve ever dealt with.
You folks do a great job. Keep up the good work.
Very affordable… great installation instructions. [I chose EI because of its] price point, certified primary.
Sharp-looking gauges. [I chose EI because of your] reputation.
Incredible customer service.
Works Great! Love it!
Excellent Service, superb product.
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.
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…
I have used your products in every airplane that I have owned over the years and have never had a problem. Thank You