- BEI Sensors specializes in speed and position sensors for extreme applications. Serving the industrial, military, aerospace and off-highway markets, BEI Sensors provides an extensive range of products from standard off-the-shelf to completely customized solutions for any challenging application. Backed by decades of experience, BEI designs sensors that offer uncompromising quality, performance, and reliability. The comprehensive product line includes optical and magnetic encoders, Hall-effect sensors, potentiometers (wirewound, conductive plastic, and hybrid), inclinometers, electronic interface modules, wireless modules, and a variety of product accessories. Specialized products for extreme applications include those for wash-down and corrosive environments, extended operating temperatures, high shock and vibration, wet and dirty operations, and products certified for hazardous area use. BEI Sensors is a brand Sensata Technologies.