Introducing Standex Detect, a New Name in Precision Electronics

Standex Detect is part of the newly rebranded Standex Electronics family. Our focus remains on precision reed switches, sensors, and relays that deliver the right design, at the right time, at the optimal cost. Read our press release to learn more about how this change strengthens our global collaboration and innovation.

Home Products Sensors Proximity Sensors MK21 Series Reed Sensor

MK21 Series Reed Sensor

The MK21 Series is a rugged, rectangular reed sensor designed for screw-fastened flange mounting, offering reliable magnetic sensing in industrial, automotive, security, and appliance environments. Available in two variants—MK21P and MK21M—this series supports high-temperature resistance, custom cable configurations, and multiple switch options for versatile application needs.

The MK21 Series delivers robust performance and environmental resilience, making it a trusted solution for OEMs and engineers working in high-temperature or harsh industrial settings.

Standards and Certifications

RoHS Compliant UL Approved UL Certificate of Compliance IP67 Compliance
  • Rectangular flange-mount housing with cable terminals
  • MK21M variant supports high-temperature environments up to +150°C
  • UL-approved and IP67-rated for durability
  • Customizable switch type, cable length, and termination
  • Right-side cable exit available (MK21PR variant)
Contact Form1A (SPST) Normally Open (N.O.), 1B (SPST) Normally Closed (N.C.), 1C (SPDT) Changeover
Operating Range10-60 AT
Rated Power Max.10W/500VDC/0.5A
  • Automotive systems
  • Industrial automation
  • Security and access control
  • White goods and appliances
  • Position, level, and end-limit sensing

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