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UAV Parts & Accessories
SANDIA aerospace offers a wide variety of FAA approved avionics switching units to aid in the installation of your avionics systems. Our MARC 35 switching units are especially suited for applications where the GPS and VOR share a single HSI or CDI. And, with the ability of each contact to carry 2 amps of current, they are suitable for a variety of avionics applications.

Each of our switching units is built by American craftsmen, using only the highest quality relays. Rated up to 12 Gs in each axis, each relay is nitrogen filled and uses gold plated contacts. Our rugged design makes these switching units ideally suited for the demanding environments experienced in helicopter operations. SANDIA Aerospace switching units are all PMAd and certified for operations up to thirty five thousand feet. You rely on your avionics to deliver you reliable performance on every flight. Make sure your switching units are up to the challenge, select SANDIA aerospace...quality you can trust