airtronic

Sanwa Denshi (三和電子機器株式会社, Sanwa denshi kiki kabushiki kaisha), widely known as Sanwa, is a brand of wireless equipment best known for its high end radio-control gear for scale modelling use. The company have been a subsidiary of the SMC Group since 1965 and began to diversify into the manufacturing of radio-control equipment (transmitters and the devices which they control) in 1974 and remote control devices for home and industrial use since 1985.
In North America, Sanwa transmitters were marketed as Airtronics up until early 2016, which began as an independent company producing model airplanes.

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