Germany (Balluff) balluff sensor Balluff balluff sensor, balluff displacement sensors, BALLUFF (Balluff) proximity switch. BALLUFF (Balluff) was established in 1921, is a sensor manufacturers in the world famous. BALLUFF innovative and practical sensing solutions that provide a wide range of applications and industries for the automotive industry, metallurgical industry, machine tool industry, the wind power industry. BALLUFF products mainly include: BNS complete electronic and electromechanical limit switch series, BOS photoelectric switches, BES inductive proximity switches, capacitive switches, BMF magnetic switch, BTL linear displacement sensors, RFID identification systems, and a variety of connectors and so on.