Profile: Smith Systems, Inc. is a manufacturer of sensors for speed, motion & temperature as well as controls, custom instrumentation, cables and harnesses. We supply environmentally protected products to railcar OEMs, transit authorities and private rail operators. Our products monitor axle speed as feedback for anti-skid braking control, journal bearing temperature, fluid & gas temperatures and other speed inputs for various aspects of train control. We are accredited with ISO 9001:2000 certification.