Mini Flat Pack Sensors

Our Bulletin 871FM Mini Flat Pack Sensors feature either plastic or metal housing and select models with full stainless steel housing and face to meet demanding application needs. These miniature flat pack sensors are used to sense small parts or may be installed where space is limited.

Bulletin 871FM Mini Flat Pack Inductive Proximity Sensors
  • Overview
  • What's New
  • Product Selection
  • Specifications
  • Documentation
  • Resources
  • Applications


  • Incorporates embedded IO-Link Technology in select sensors to help minimize downtime and increase productivity
  • Offers rugged full stainless steel models that provide Factor-1 equal sensing / weld field immunity for tough applications
  • Offers extended range sensing for metal versions allows mounting further away from target which reduces chance of impact and related damage
  • Provides a range of switching frequencies up to 5000 Hz
  • Includes cable, quick-disconnect and pigtail cable with M12 connection styles

Additional Information

IO Link Enabled Sensors Can Now Integrate with the Connected Enterprise

IO-Link Technology allows sensors to easily integrate into the Connected Enterprise, delivering data from the sensor directly into a control system via EtherNet/IP protocol. This is a very cost efficient and easy-to-use method which is transparent to the control system.

IO-Link enabled sensors offer advanced features and diagnostics that can only be accessed through an IO-Link master. These sensors act like standard sensors when not interfaced to an IO-Link enabled control system, so you can stock the same sensors for standard I/O (SIO) applications and IO-Link applications, simplifying the selection process and reducing stocking costs.

The benefits of IO-Link Technology include:

  • Reduced inventory and operating costs
  • Increased uptime/productivity
  • Simplified design, installation, setup and maintenance
  • Enhanced flexibility and scalability

To view commonly ordered and quickly available products, use the Product Configuration Assistant for our complete product offerings.


Inductive Proximity Sensors Technical Data PROX-TD001


  • CE Marked for all applicable directives

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Product Certifications

See our Product Certification site for Declarations of Conformity, certificates and other certification details.


Presence Sensing BrochureSENSOR-BR001
Bulletin 871 Miniature Proximity Sensor Expansion Product Profile871FM-PP002
Bulletin 871FM Miniature Flat Pack Inductive Sensors Product Profile871FM-PP001
Inductive Proximity Sensors Technical Data PROX-TD001
871FM Inductive Sensors with IO-Link Interface871FM-UM001
Miniature Metal Flat Pack Inductive Sensors with IO-Link User Manual871FM-UM002
More Rectangular Inductive Proximity Sensors publications in Literature LibraryAll Languages

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Product Certifications

See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Configuration & Selection Tools

  • CrossWorks — Convert competitive catalog numbers to similar Allen-Bradley® products.
  • ProposalWorks — Build complete quotes and proposals.

Other Resources

  • Knowledgebase — Visit our online resource for technical information, support chat and forums, software updates, and product safety advisories/notices.


Typical applications for the Bulletin 871FM Plastic Mini Flat Pack Sensors include:

  • Automation
  • Food processing
  • Material handling
  • Packaging
  • Washdown applications
  • Welding and stamping applications

Product Application Library — View our product application library to discover how customers have applied Allen-Bradley sensing products.