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.
ValenID · valenid.com · sales@valenid.com
OM-200 Small PCB On-Metal UHF RFID Tag, 25 × 10 mm
Compact 25 × 10 × 2.5 mm FR4 PCB tag for small metal parts: 3 m on metal with a 4 W fixed reader, 2 m with a handheld. NXP UCODE 8.
- 25 × 10 × 2.5 mm FR4 PCB tag for small metal parts
- 3 m on metal with a 4 W fixed reader; 2 m with a handheld
- NXP UCODE 8 chip, EPC Gen2
- Order -US for 902–928 MHz or -EU for 866–868 MHz systems
- Low 2.5 mm profile for tool bodies and equipment edges
- Frequency
- 902–928 MHz / 866–868 MHz
- Chip
- NXP UCODE 8
- Read range (4 W fixed, on metal)
- 3 m
- Read range (handheld)
- 2 m
- Substrate
- FR4 PCB
- Dimensions
- 25 × 10 × 2.5 mm
Reply within 24 hours Tested before dispatch Worldwide shipping
Small PCB On-Metal UHF RFID Tag, 25 × 10 mm: overview
OM-200 is a small FR4 circuit-board UHF tag for metal items with little free surface: hand tools, gauges, surgical and medical instruments, small IT parts and firearm components. At 25 × 10 × 2.5 mm it is thin enough to sit on a tool body or equipment edge without getting in the way.
The datasheet quotes 3 m on a metal surface with a 4 W fixed reader and 2 m with an Impinj R2000-based handheld. That is enough for tool-crib gateways, cabinet readers and handheld audits, though not for long portal reads. The chip is an NXP UCODE 8, and the tag is listed for 902–928 MHz and 866–868 MHz; order OM-200-US or OM-200-EU for your region.
If the item has room for a larger tag, OM-180 (52 × 13 mm) quotes 8 m on metal; for the smallest PCB footprint, see OM-210 (16 × 15 mm).
Integration notes
The datasheet lists no fixing method. PCB tags of this size are commonly bonded with epoxy or industrial adhesive, or set into a shallow pocket machined in the part. Test your chosen method on samples, with the tag in its final position, before rollout. The EPC can be encoded on site with any Gen2 reader-writer.
OM-200 specifications
RF & chip
| Frequency band | 902–928 MHz (US) / 866–868 MHz (EU) |
|---|---|
| Chip | NXP UCODE 8 |
| Air interface | Passive UHF, EPC Gen2 (ISO/IEC 18000-63) |
Read range (datasheet)
| Fixed reader (4 W), on metal | 3 m |
|---|---|
| Handheld reader (Impinj R2000-based) | 2 m |
Mechanical
| Housing / substrate | FR4 printed circuit board |
|---|---|
| Dimensions | 25 × 10 × 2.5 mm |
| Mounting | Not specified; confirm adhesive or embedding method on samples |
| Designed for | Direct mounting on metal surfaces |
FR4 PCB on-metal UHF tags compared
| SKU | Size (mm) | Chip | Band | Fixed reader (4 W), on metal | Handheld reader |
|---|---|---|---|---|---|
| OM-190 | 90 × 20 × 3.5 | NXP UCODE 8 | 902–928 MHz / 866–868 MHz | 10 m | 6 m |
| OM-180 | 52 × 13 × 3.9 | NXP UCODE 8 | 902–928 MHz / 866–868 MHz | 8 m | 3.5 m |
| OM-200 | 25 × 10 × 2.5 | NXP UCODE 8 | 902–928 MHz / 866–868 MHz | 3 m | 2 m |
| OM-210 | 16 × 15 × 3.8 | NXP UCODE 8 | 902–928 MHz / 866–868 MHz | 2.6 m | 1.6 m |
Datasheet figures. Fixed-reader ranges are with the tag on metal and a 4 W reader; handheld ranges use 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-200-US | Small FR4 PCB on-metal UHF tag, 25 × 10 × 2.5 mm, NXP UCODE 8, for 902–928 MHz systems | |
| OM-200-EU | Small FR4 PCB on-metal UHF tag, 25 × 10 × 2.5 mm, NXP UCODE 8, for 866–868 MHz systems |
Where the OM-200 is used
- Hand tools and gauges logged through a tool-crib reader
- Medical and surgical instruments counted with a handheld
- Small IT parts and accessories in asset registers
- Firearm components in armory inventories
OM-200 FAQ
What range can I expect?
3 m with a 4 W fixed reader and the tag on metal, and 2 m with an Impinj R2000-based handheld, per the datasheet.
How do I attach such a small tag?
The datasheet does not specify a method. Epoxy, industrial adhesive or a machined pocket are common for PCB tags of this size; test your method on samples.
Which band variant should I order?
OM-200-US for 902–928 MHz readers and OM-200-EU for 866–868 MHz readers.
Is there a smaller tag?
Yes. OM-210 measures 16 × 15 × 3.8 mm and quotes 2.6 m on metal with a 4 W fixed reader.
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-200
Send your card type, interface and quantity. You get a quote, lead time and compatibility notes within 24 hours — samples available for most items.