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Established in 1946, Bach-Simpson™ is a leading supplier of custom electronic instrumentation and control systems for the rail and transit markets. Known for our quality and reliability, Bach-Simpson offers state-of-the-art products tailored to our customer's needs. ISO 9001-2008 design procedures and CMMi Level II software development result in products with exceptional performance and reliability. Our headquarters in London, Ontario, Canada incorporates the design, manufacturing and service groups in one facility.

celebrating 70 years
Event Recorder Event Data Recorder
Bach-Simpson™ Event Recorders are engineered for maximum flexibility, meeting your immediate needs while allowing for future expandability. Bach-Simpson Event Recorders are accompanied by a complete PC software package that allows service personnel to download and graphically analyze data from the Event Recorder.
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Traxsyte TraxSyte®
The TraxSyte® System integrates Bach-Simpson’s™ FRA and IEEE 1482.1 compliant Event Recorder with Bach-Simpson’s solid state Digital Video Recorder; TraxSyte.
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LED Speed Indicator LED Speed Indicator
Microprocessor-controlled, with a display panel that features light-emitting diodes (LED), this Bach-Simpson™ speed indicator has achieved wide acceptance with railroad crews; while it's dependable accuracy and rugged reliability, make it popular with railroad purchasing and maintenance personnel.
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Axle Alternator Axle Alternator
The Bach-Simpson™ Axle Alternator is designed to translate the rotational speed of a locomotive or transit vehicle wheel and axle into an electrical signal which represents the linear ground speed of the conveyance.
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