Impinj M4 UHF RFID Small Inlay

This UHF RFID Inlay is very small, and its diameter is only 12mm. With the Impinj M4 chip, it is very powerful. Impinj M4 inlay has higher read reliability, 66% higher than other chips. Also, it features high security, excellent RF performance, and good flexibility.

Because it is small enough, Impinj M4 UHF RFID Small Inlay can be installed on small target objects. Because it is powerful, it is especially suitable for applications that are difficult to control tag positioning. For example, retail, baggage handling, asset tracking, etc.


This RFID inlay adopts the Impinj M4 chip. And it has excellent RF performance, higher read reliability, and good confidentiality. The detail characteristics of the Impinj M4 chip as follows:

  • True3D™ antenna technology—patented, dual-differential antenna ports enable compact Omni-directional tags, improving item-level read reliability
  • QT™ technology—protects business-sensitive data while assuring consumers of privacy
  • Available memory options to support large user-memory applications
  • BlockPermalock Gen2 command adds flexibility in memory usage
  • FastID™ mode enables 2x to 3x faster EPC+TID inventory for authentication and other TID-based applications
  • TagFocus™ mode suppresses previously read tags to enable capture of more tags
  • Extended temperature range (-40 ℃ ~ +85 ℃) for performance under hard conditions
  • Impinj’s field-rewritable NVM (optimized for RFID) provides 100,000-cycle/50-year retention reliability
  • EPCglobal and ISO 18000-63 compliant, Gen2V2 compliant


  • Logistics tracking
  • Asset Management
  • Supply chain Management
  • Parking Management
  • Warehouse Management
  • Retail Management
  • Luggage management
  • Personal experience and safety
  • Important document management
  • Other Applications


Available ShapeAntenna model SizeChip
J41φ12mmImpinj Monza 4
J4215*8mmImpinj Monza 4
J51φ12mmImpinj Monza 5


Item Impinj Monza 4 UHF RFID Mini Inlay
Chip Impinj Monza 4
Frequency UHF 860-960MHz
Protocol ISO18000-6B/ISO 18000-6C EPC C1G2
Antenna Material Aluminum
Size Dia12 mm or Customized
Material Coated paper, Glossy paper, Matte paper
Reading distance 0-10cm
Write Endurance 100000 times
Working Temperature -25–65℃
Data Retention Time 10 years
Printing Options Silk-screen printing, Laser Engraving, CMYK full color, Pantone, etc.
Crafts Available Logo or number printing, Bar code, QR code, etc.
Samples Free samples are available upon request

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