Safety and simplicity!
- Customer
Andrew L. from Florida
- Aircraft
Piper PA-28-235 Cherokee Pathfinder
- 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
Have had EI instruments in my past plane and current plane and they always performed flawlessly.
- Customer
Gary M. from California
- Aircraft
Cessna 182Q Skylane
- EI Instrument
Love it!
- Customer
Corey B. From Texas
- Aircraft
Grumman American AA-5A Cheetah
- EI Instrument
Great tech support. Someone always answers and gives accurate concise information.
- Customer
Thomas M. From Georgia
- Aircraft
Mooney M20C Ranger
- EI Instrument
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
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.
- Customer
Charles M. from South Dakota
- Aircraft
Cessna 150F
- EI Instrument
EI tech support is the best.
Excellent customer service. Without a doubt the best aviation part I have purchased.
- Customer
Alan B. from Florida
- Aircraft
Reid and Sigrist R.S.1 Snargasher
- EI Instrument
Excellent Service. Superb Product.
- Customer
Steven N. from Colorado
- Aircraft
Cessna 182E Skylane
- EI Instrument
I have been flying with EI instruments for over 20 years. I purchased the CGR-30P to update my engine instruments into one modern package.
Great Service.
- Customer
Flying Academy from New York
- Aircraft
Piper PA-28-161 Warrior
- EI Instrument
Really glad to have accurate oil psi and temp! [It’s a] match with previous [EI] installs.
- Customer
Nathan V. from Alaska
- Aircraft
Cessna 172C
- EI Instrument