Very easy to install. Harness is clearly marked. Instrument worked first time. The instrument is intuitive and easy to use.
- Customer
William F. from Maryland
- Aircraft
Mooney M20C Ranger
- 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?
8am–4:30pm PST M–F
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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
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Documents
Documents & Manuals
Testimonials
Customer Testimonials
[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
Great product at a great price …. (and) reliability.
Great tech support. Someone always answers and gives accurate concise information.
- Customer
Thomas M. From Georgia
- Aircraft
Mooney M20C Ranger
- EI Instrument
Why did you choose our products over the competition? Complete kit and ease of installation.
- Customer
Mitch G. from Canada
- Aircraft
DeHavilland DHC-2 beaver
- EI Instrument
Very pleased with the quality. [Chose because of] positive reviews from other aircraft owners.
Excellent tech help…
Outstanding support. From the friendly demeanor of whoever answers the phone to all the way to [their sales representative]. Your CGR-30 series is superb.
Works Great!
- Customer
Charlie M. From Texas
- Aircraft
American Champion 8KCAB Decathlon
- EI Instrument
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
Best sales team.
Great products and very clear install.
- Customer
John W. from North Carolina
- Aircraft
PA-12 Piper
- EI Instrument