Love the look and having every piece of info in front of me… Better price and look [versus competition].
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
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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

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Customer Testimonials
Love it!
- Customer
Corey B. From Texas
- Aircraft
Grumman American AA-5A Cheetah
- EI Instrument
Sales reps have been very friendly and helpful.
Fantastic customer support!
Customer Service is far superior… with an excellent record of resolving … technical issues.
- Customer
C.J. R. from North Carolina
- Aircraft
Mooney M20C Ranger
- EI Instrument
Great product, frees up space
- Customer
Theodore S. from Florida
- Aircraft
Cessna 182Q Skylane
- EI Instrument
Simple and Easy.
- Customer
Aaron H. from Washington
- Aircraft
Cessna 140
- EI Instrument
Awesome Product! Great product and fantastic support!
- Customer
David B. from Texas
- Aircraft
Cessna 182Q Skylane
- EI Instrument
Great… price [&] support
- Customer
Harry V.D.H. from New Zealand
- Aircraft
Piper PA-28R-200 Arrow II
- EI Instrument
[I chose EI because they offer a] certified replacement vs. back-up only and they look great.
- Customer
Nic C. from South Carolina
- Aircraft
Piper PA-28 Cherokee
- EI Instrument
Easy install, good product. [I chose EI because of my] experience with [the] product.
- Customer
Dave S. from Missouri
- Aircraft
Beechcraft Bonanza Model 35
- EI Instrument
Always built well. Always dependable. Been using & relying on EI equip for over 35 years!