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.