RFID Asset & Tool Tracking
Build an RFID asset tracking system: on-metal, ceramic and tie-on tags matched to each asset, handheld audits, smart cabinets and IP67 HF heads for tooling.
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OM-140 Small Anti-Metal UHF RFID Sticker, 30 × 15 mm
Compact 30 × 15 × 1.2 mm flexible UHF sticker for small metal items. Reads 0.6 m on metal with a 4 W fixed reader and 0.3 m with a handheld.
- 30 × 15 × 1.2 mm, the smallest label in our flexible on-metal range
- 0.6 m on metal with a 4 W fixed reader; 0.3 m on metal with a handheld
- Impinj Monza R6 chip, specified for 902–928 MHz
- Printable face for a visible ID next to the encoded EPC
- Flexible PET for small curved metal parts and liquid containers
- Frequency
- 902–928 MHz
- Chip
- Impinj Monza R6
- Read range (4 W fixed, on metal)
- 0.6 m
- Read range (handheld, on metal)
- 0.3 m
- Dimensions
- 30 × 15 × 1.2 mm
Reply within 24 hours Tested before dispatch Worldwide shipping
Small Anti-Metal UHF RFID Sticker, 30 × 15 mm: overview
OM-140 is the smallest flexible on-metal label in our range. At 30 × 15 × 1.2 mm it is sized for metal items with very little room for a tag: hand tools, small instruments, meters, medical device housings and compact IT accessories. Like its larger siblings it is printable and encodable, so each sticker can carry a human-readable ID next to the EPC.
The trade-off is range. The datasheet gives 0.6 m on metal with a 4 W fixed reader and 0.3 m on metal with an Impinj R2000-based handheld. Treat it as a near-field label for handheld checks, tool-crib counters and bench-top verification rather than portal or dock-door reading. It uses an Impinj Monza R6 chip and is specified for 902–928 MHz.
The flexible PET construction lets the sticker sit on gently curved surfaces, and it can also go on containers holding liquid. If the item has space for something larger, OM-130 (55 × 15 mm) reaches 3.5 m on metal and OM-110 (65 × 35 mm) reaches 6 m.
Integration notes
Because reads happen at short distance, bring the handheld antenna close to the sticker and test with the reader model your staff will carry. Printing and encoding run on an industrial UHF RFID label printer; ask us for the qualified printer models.
OM-140 specifications
RF & chip
| Frequency band | 902–928 MHz |
|---|---|
| Chip | Impinj Monza R6 |
| Air interface | Passive UHF, EPC Gen2 (ISO/IEC 18000-63) |
Read range (datasheet)
| Fixed reader (4 W), on metal | 0.6 m |
|---|---|
| Handheld reader (Impinj R2000-based) | 0.3 m, on metal |
Mechanical
| Material | PET, flexible |
|---|---|
| Dimensions | 30 × 15 × 1.2 mm |
| Attachment | Adhesive label; conforms to curved surfaces |
| Suitable surfaces | Metal; containers holding liquid |
| Customization | Printing and EPC encoding |
Flexible on-metal UHF labels compared
| SKU | Size (mm) | Build | Chip | Band | Fixed reader (4 W), on metal | Handheld, on metal |
|---|---|---|---|---|---|---|
| OM-110 | 65 × 35 × 1.25 | Flexible PET, printable | Impinj Monza R6 | 902–928 MHz | 6 m (US) / 4 m (EU) | Not specified |
| OM-120 | 60 × 25 × 1 | Flexible PET, frangible | Impinj Monza R6 | 902–928 MHz | 1 m | Not specified |
| OM-130 | 55 × 15 × 1.2 | Flexible PET, printable | Impinj Monza R6 | 902–928 MHz | 3.5 m | 2 m |
| OM-140 | 30 × 15 × 1.2 | Flexible PET, printable | Impinj Monza R6 | 902–928 MHz | 0.6 m | 0.3 m |
Datasheet figures with the tag on a metal surface, read by a 4 W fixed reader or an Impinj R2000-based handheld.
Specifications can change between production batches. Confirm the current revision with us before placing volume orders.
Ordering options
Quote the SKU that matches your frequency, interface and mounting. Not sure? Send us your controller model and we will pick the variant for you.
| SKU | Configuration | Actions |
|---|---|---|
| OM-140 | Small flexible printable anti-metal UHF sticker, 30 × 15 × 1.2 mm, Impinj Monza R6, 902–928 MHz |
Where the OM-140 is used
- Hand tools and gauges checked in and out at a tool crib
- Small instruments and meters verified with a handheld
- Medical device housings too small for a standard label
- Compact IT accessories in asset registers
OM-140 FAQ
How close does the reader need to be?
The datasheet quotes 0.6 m on metal with a 4 W fixed reader and 0.3 m on metal with an Impinj R2000-based handheld, so plan for near-range reading.
Is there a longer-range label in the same format family?
Yes. OM-130 (55 × 15 mm) reads 3.5 m on metal and OM-110 (65 × 35 mm) reads 6 m, both with a 4 W fixed reader.
Can the stickers be printed and encoded?
Yes. The face accepts printing and the Monza R6 chip is writable, so IDs and EPC data can be applied on an industrial UHF RFID label printer.
Before you buy
Related buyer guides
UHF RFID Frequency by Country: 902–928 MHz vs 865–868 MHz and Other Bands
Compare UHF RFID reader bands by country, including US, EU, UK, China, India and Japan. Understand ERP, EIRP, channel conditions and radio approvals.
How to Wire a Long-Range UHF Reader to an Access Controller or Barrier
Wire a UHF reader's D0, D1 and ground to your controller, match 26/34-bit Wiegand, size 12 V power and trigger the barrier by relay. Diagrams included.
Does RFID Work on Metal? How to Choose On-Metal Tags
Yes, RFID works on metal with tags built for it. See why metal detunes standard tags, compare ABS, PCB, ceramic and label tags, and test read range properly.
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Get pricing for the OM-140
Send your card type, interface and quantity. You get a quote, lead time and compatibility notes within 24 hours — samples available for most items.