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Thousands of Applications
One Source
Designed to Survive

Smith Systems, Inc. is a privately owned manufacturer of sensors for speed, motion and temperature, as well as controls, custom instrumentation, cabling and harnessing associated with these devices. Our capabilities range from commercial standards (found in assembly and process machinery), to the high reliability devices used in aerospace applications, to durable products for reliable performance in harsh environments.

We are a qualified source for flight hardware and have supplied products for civilian, military applications and space flight. These products are designed to survive high vibration and extremes of thermal and mechanical shock.

Smith Systems, Inc. is a primary supplier of these 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, other fluid and gas temperatures, and other speed inputs for various aspects of train control. These products endure the worst of operating conditions – the underside of a railcar.

We apply all of the rigorous design and manufacturing standards of flight and rail hardware to all our products. When performance and reliability are essential, Smith Systems, Inc. can help. We offer many standard devices and will also develop custom solutions for your unique applications.

Why Smith Systems?

  • Specialists in difficult applications
  • The premium manufacturer of OEM and after market
  • Proven in-service reliability
  • Factory direct sales and engineering support
  • Competitive pricing and on-time delivery


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Technical Articles

ATEX/IECEX Certified Electronics Manufacturer (Velocity Sensing) ATEX/IECEx refers to European Directive 94/9/EC, which covers equipment and protective systems for use in areas endangered by potentially explosive atmospheres created by the presence of flammable... (View Full Article)