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Sensata-BEI ACW4 Single-Turn and TCW4 Multi-Turn Absolute Hall Effect Sensors

Sensata-BEI ACW is a 2-part Hall Effect Sensor Assembly and Magnet to produce an absolute single turn output. The TCW is also a 2-part Hall Effect Sensor Assembly and Magnet designed to measure both a single turn as well as the number of turns. These absolute, single-turn (ACW) and multi-turn Hall Effect sensors can be found in a wide variety of applications in process industries and factory automation. The ACW4 and TCW4 offer exceptional flexibility during installation, due to their compact size and a robustness that provides excellent resistance to shocks and vibration.

Features & Benefits

  • With its two-part design, the ACW4 absolute single-turn offers maximum flexibility for installation
  • Rugged and excellent resistance to shock and vibration
  • Robust, proven magnetic technology
  • Environmentally resistant, IP 67 standard (IP69K option)
  • Extended operating range from -20° C to 85° C
  • Variety of magnet holders available
  • Compact package – easy to add to existing designs
  • Low power consumption
  • Several output options available: CANopen, SSI, PWM, Analog
  • Single turn (ACW) or multi-turn (TCW)


  • Industrial & Manufacturing Equipment (Not Vehicles)
  • Other


Factory Automation, process automation, industrial automation, packaging and printing functions, low level operational control

Product Spec Sheets and Additional Information

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