We love our MVP-50P w/ its crisp, intuitive display and ease of operation.
S-50 External Shunt
FAA Approved Accessory
- PMA’d
- 50 Amp, 50mV (100 amp short burst capability).
- 2″ (W) x 1.2″ (D) x 1.7″ (H)
- 3.5 Oz Unit
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Product Overview
Prices
Retail Prices
Package includes:
- S-50 Shunt
- Installation Instructions
Description
Package
Retail Price
S-50 External 300 Amp Shunt
S-50
$48

Specifications
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Documents & Manuals
Testimonials
Customer Testimonials
Incredible customer service.
EI has the best customer service of any company that I’ve ever dealt with.
- Customer
Greg J. from Georgia
- Aircraft
Beechcraft C23 Sundowner
- EI Instrument
Great service for Electronics International. Very helpful with what it needed for my aircraft. My mechanic has installed several of these units and highly recommended this for my aircraft.
Looks great. Works great.
- Customer
Stephen W. N. from Texas
- Aircraft
Cessna 177 Cardinal
- EI Instrument
Nice bright display.
I really appreciate the quality of communication about my order. The instrument offers the right functionality (being a primary instrument) in the right form factor for my application.
Very happy with our new tachometer!
Your (customer) service is excellent!
- Customer
Thomas T. from Washington
- Aircraft
Piper PA-18-150
- EI Instrument
Currently have multiple EI Instruments in our aircraft. Quality and reliability are key.
- Customer
Jason Y. from Arizona
- Aircraft
Cessna 182A
- EI Instrument
Haven’t used it yet, but we are excited to & Love the way it looks!!
- Customer
Larry A . From Idaho
- Aircraft
Piper PA-28R-200 Arrow
- EI Instrument
Great… price [&] support
- Customer
Harry V.D.H. from New Zealand
- Aircraft
Piper PA-28R-200 Arrow II
- EI Instrument