MSC supplies ATEX/IECEx certified explosion proof magnetic speed sensors for Class I, Division 1, Group A, B, C, & D hazardous areas. They are designed for use in atmospheres containing acetylene, flammable gas, flammable liquid-produced vapor, or combustible liquid-produced vapor. ATEX certified sensors are provided to chemical companies, oil refineries and exploration facilities, and OEM purchasers such as Woodward Governor, Generac and Dresser-Rand for their turbine driven generator and compressor applications.


MSC ATEX & IECEx Certified Explosion-Proof Variable Reluctance Speed Sensors are:

  • Safe for hazardous environments, such as methane gas, and flammable liquids.
  • Perfect for refinery, chemical and other potentially explosive applications.
  • Ready for immediate delivery.
  • Operating temperature range -85° to 212° F.
  • Available in a variety of sizes and mounting thread options.
  • Can be customized with additional certification.

Presently, MSC has numerous Variable Reluctance Speed Sensors CSA/ATEX certified. Type of protection is Ex d (flameproof), with Rated Output of 63V p-p or 5Vp-p, 30mA maximum and Evaluated to Standards 60079-1:2007 and 60079-0:2011. Our latest certificate is for IECEx, flameproof, suitable for hydrogen group with Temperature rating of (-65°C to + 105°C). Sensors belong to surface equipment category 3 – high safety required. Certificate is valid for North America and Europe.

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  • Digital Switches
  • Proximity Sensors
  • Position Sensors
  • Position Switches

  • Vane Sensors
  • Temperature
  • Dual Output
  • Home Positioning


Most MSC sensors are available in all industry standard configurations.

  • Tubular Case
  • All Threaded Case
  • Thread, Hex Head
  • Thread, Knurl Head
  • MS Connector
  • Threaded, Hex Body 


FIange-type bolt•on, machined, cast and molded housings.

Terminations: Twisted Wire, Cable. Shielded Cable. Crimped Terminals, Connectors.