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Small Metal Mount RFID Tag

RFID Product, Versatile Attachment, Harsh Environment, Short Range RFID

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Small Metal Mount RFID Tag small

Small Metal Mount RFID Tag


  • Available without adhesive
  • Versatile attachment
  • Available with other inlays


SmartMark powered by TROI


The small metal-mount RFID tag (WF-SM-75NW) employs a rugged MSOP chip on board design for exceptional temperature and harsh environment performance. Excellent read/write performance on any metal surface or embedded below the surface. The chip's dual antenna input maximizes range and assures indifference to orientation.


Also see the small metal mount RFID tag (WF-SM-75HT) for additional options.


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Metal Mount, Container Tagging, Heavy Machinery, Harsh Environments, Outdoor Use, Power Tools Tracking, Construction, Manufacturing


Impact Resistant Plastic

Size (LxWxH) 0.85" x 0.85" x 0.20"
Expected Outdoor Durability Good
Water Resistance Excellent
Chemical Resistance Fair



Temperatures and Duration
Maximum Temperature Long-term at 10 hr: 170°F (77°C) No effect on tag. Tag remained the same in appearance and RFID performance/function. There was no sign of peeling, tearing or destruction. The tag read normal after the tests. *Test is not limiting.

Standard at 5 min: 190°F (88°C)

Short-term at 90 sec: 204°F (93°C)
Minimum Temperature -40°F (-40°C)
Temperature Cycling The tag was cycled to 204°F at equilibrium for five times. Between each cycle, it was air cooled to room temperature and read with an RFID reader.


Small metal-mount tag stands up well to harsh environments

RFID Performance


RFID Protocol UHF Class 1 Generation 2
Chip Manufacturer Impinj Monza 3
Frequency US 902-928*
Memory 96 bits


*Other frequencies available on request


Tested Polarization:


Tag performance was experimentally measured in an anechoic chamber and a known set of experimental variables. The antenna used for measurements was linearly polarized and of monostatic configuration. The direction of tested polarization is as follows.











Optimal Read Range* on Different Material Surfaces:

*Tag performance was measured free of material influence, on a dry wood, window glass, thermoplastic, and steel slabs. Actual read ranges may differ depending on conditions such as environment, tag placements, hardware, etc.



Permanent Acrylic

Thickness 2.0 mil
Min App Temp 50º F
Service Temp -40º F to 200º F
Adhesion to Steel at 72 hr. dwell Excellent
Adhesion to LSE plastics Fair
Adhesion to HSE plastics Very Good

Also available without adhesive

Shelf Life

Stored at 70F and 50% Relative Humidity

Stable at room temperature


Small Metal Mount RFID Tag Design

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