Smith Systems, Inc.
6 Mill Creek Center
Brevard, NC 28712
Telephone: (828) 884-3490
Fax: (828) 877-3100
Email: info@smith-systems-inc.com
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Automotive and Racing Speed Sensors

Low cost alternatives designed to aerospace standards

Smith Systems, Inc. Vehicle Transmission Speed Sensors:

  • Hall Effect Proximity Speed Sensors

  • Single and Dual Output Speed Sensors

  • Variable Reluctance

Hall Effect Proximity Vehicle Transmission
Speed Sensors For Automotive Racing


Hall Effect Proximity Speed Sensor Technology carried over from aerospace sensors enables these products to survive the vehicle transmission racing environment’s hostile conditions. Smith Systems, Inc. speed sensors are running in NHRA ®, Champ ®, Indy ® and F1 ® cars.

High reliability, durability and peak performance are designed in and built into every speed sensor. Every device is pre-qualified by cycling through a rigorous test program.

We offer single and dual output, biased and un-biased, variable reluctance and Hall Effect technology proximity speed sensors. Both the passive and active probes can be used for crank triggers, vehicle transmission speed sensors, turbocharger speed sensors, distributor pick-ups and general speed inputs to data acquisition/engine management systems. We also manufacture high reliability probes for MSD ® and Electromotive ® ignition systems.

Automotive and Racing Temperature Speed Sensors

Our temperature speed sensors incorporate a variety of sensing methods including thermistors, RTD’s, thermo-fuses and thermostats. Typical applications include air, oil, water and bearing temperature monitoring.

These vehicle transmission speed sensor products are not available in auto parts stores. Contact us directly for information about the engineering professionals who are approved distributors. Work directly with our engineering staff for custom solutions to specific applications for speed sensors.