Magnetic Sensors Corporation is an Anaheim, California-based ISO 9001:2015 and AS9100D certified US manufacturer of magnetic speed sensors, Hall effect sensors, proximity switches, variable reluctance (VR) sensors, and custom coil assemblies, serving aerospace, defense, industrial, rail, wind energy, and automotive markets from its California production facility. The company’s sensor catalog covers VR speed sensors, Hall effect speed and direction sensors, ATEX/SIL-certified hazardous area sensors, temperature sensors for hot axle box detection in high-speed rail applications, and custom-wound coils from 16 AWG through 56 AWG in sizes ranging from large power windings to subminiature coils too small to see with the naked eye. MSC differentiates itself through rapid response — building custom magnetic pickup sensors and coil assemblies to order in days — and its engineering team is available directly by phone to assist with application-specific sensor design, making it a practical choice for industrial and defense engineers needing US-manufactured, application-engineered magnetic sensing solutions without minimum quantity constraints.