I have used your products in every airplane that I have owned over the years and have never had a problem. Thank You
- Customer
Gregory V. from New Hampshire
- Aircraft
Cessna A185F Skywagon and AgCarryall
- EI Instrument
S-300 External Shunt
FAA Approved Accessory
- PMA’d
- 300 Amp
- 3.25″ (W) x 1.75″ (D) x 1.75″ (H)
- 11.5 Oz Unit
Questions?
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Product Overview
Prices
Retail Prices
Package includes:
- S-300 Shunt
- Installation Instructions
Description
Package
Retail Price
S-300 External 300 Amp Shunt
S-300
$60
Specifications
Videos
Documents
Documents & Manuals
Testimonials
Customer Testimonials
I have seen your products in other aircraft and have seen their reliability.
- Customer
Juan P. from British Columbia, Canada
- Aircraft
Cessna 172M Skyhawk
- EI Instrument
I have been installing avionics since 1996. This was THE BEST wire harness I have ever seen!
Easiest company to deal with and an awesome product! Price, Certified for Primary, and Features.
- Customer
Justin E. from California
- Aircraft
Piper PA-30 Twin Comanche
- EI Instrument
Great reviews from friends using your products.
Great service and support for great products!
Installed digital volt/amp gauge in PA 28-181. Great unit easy to install. Much better than original.
Currently have multiple EI Instruments in our aircraft. Quality and reliability are key.
- Customer
Jason Y. from Arizona
- Aircraft
Cessna 182A
- EI Instrument
E.I. Always Exceeds Expectations!
- Customer
Michael S. from California
- Aircraft
Beechcraft Bonanza Model 33 Debonair
- EI Instrument
Your company shares a good reputation!
The reviews online were very good. Customer service has been great.
I have worked with and installed a few of your competitors’ and your systems. EI instruments’ ease of use and installation make these systems my go-to choice and number one recommendation to customers.