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Image of NFC 29mm White TN01K
Close up image of an NFC 29mm White TN01K
Detail of an NFC 29mm White TN01K
Side view of the NFC 29mm White TN01K
Works with:
Android
iPhone
This product is part of our White NFC Tags range
Express QR Code & ID Print Option >>
Datasheets
Product Datasheets
ST25TN01K Datasheet
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Express ID & QR Code Print Available >>

29mm White TN01K

  • 40 year memory specification
  • Versatile 29mm tag size
  • Tag 'kill' option for one time ticketing
One of the original sizes we've stocked since 2012, the 29mm size is an ideal balance between physical size and scan performance. One of our favourites and now available with the new STMicro ST25TN01K chip.

The TN01K chip has a superb scan distance performance and benefits from a long 40 year memory specification (compared to the NTAG213 10 years). An NFC Forum Type 2 specification, this chip can be scanned with any NFC enabled mobile phone or compatible device. This 29mm is the first of many tags that Seritag will stock with this new chip.

With a white plastic face and permanent adhesive, these are ideal units for asset and location tagging and marketing applications. The size allows for a good QR code and/or ID print for visual ID if required.

Supplied on reels of up to 2,000 in larger orders or strips in lower quantities. This product is also available in orders over 2,000 units with superb full colour custom print ideal for marketing or direct product application.

Ixkio NFC Tag Management

What is tag management ?

NFC tag management allows you to dynamically control the destination URL or landing page of your NFC tags. It provides tracking and stats, authentication services for anti-counterfiet tags, and a host of features to assist in getting the right tags in the right locations or products. Ixkio even allows you to encode your own NTAG213, iCODE or NTAG424 tags with our mobile App. 

Using ixkio

Ixkio can be used as either a redirect platform where tags are scanned and then redirected via ixkio to your landing pages, or as a Direct Response platform, where ixkio delivers the landing page. 

It's powerful, flexible software that provides a host of features to enable simple and dynamic management of your NFC tags. 

Getting started

Find out more about our ixkio NFC tag management platform or contact us for more information. 

Pricing

Seritag Product Code : ST876
Current Stock : 118 (need more?)We can typically supply additional stock of this product within 5 weeks. However, we very strongly advise you to contact us for exact production schedules for non-stock items before ordering.

Price per tag : 
10 - 99$0.30
100 - 999$0.28
1,000 - 9,999$0.25
10,000 - 19,999$0.24
20,000 - 49,999$0.23
50,000 +Contact Us
(price excludes VAT)Show prices with VAT 
(You can encode the tags yourself)
Total Cost :
$-

(excludes VAT)

 

Product Data

NFC Chip ST25TN01K
Interface Specification ISO 14443 / 13.56 MHz / NFC Forum Type 2
Total Memory 208 Bytes (User)
Data Retention 40 years (estimated)
Metal Surfaces (?)Not suitable
Unique Print (?)Not Available
NFC Label Format White Label
Real ScanStrength (?)31mm - 40mm
ScanStrength Offset (?)80%
Printing Option Thermal Transfer
Antenna Size 25mm Circular
Label Size 29mm Circular
Thickness 0.184 mm
Thickness (Chip Section) 0.35mm
Adhesive Yes, Permanent
Face Material White PET Plastic
Construction Material PET
Antenna Type Etched Aluminium
Weather Resistance Low
Water Rating Water Resistant
Availability Stock Item - Immediate Dispatch
Delivery Format Reel / Strips of 5
Full Reel Count 2000
Customer Information
NFC Applications
Seritag
Contact
©Copyright 2026 Seritag.
Seritag is a trading name of TabDesk Ltd, a UK Registered company 10474154. VAT Registration Number GB256328005.
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Ordering Tags with Custom Print

Seritag have worked on thousands of custom print NFC projects. We will always provide recommendations and advice if we think your tags won't look great !

Creating artwork

We prefer high resolution images or vector format artwork. To help you get started, you can download our artwork guide. If you don't have access to artwork software, many of our users just use canva. And we are always here to help !

Providing artwork

You can upload artwork files here with your order, or place your order now and contact us to send files or for advice.

Production process

Once we have your artwork, we check it over and provide you on email with a pdf 'proof'. This is a visual of exactly what we will print. You can then confirm and we go to production.

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UID Scan Explained

What is a UID ?

Every genuine NFC chip (we only sell genuine chips) contains a fixed 'serial number' in it's memory. This is unique and defined by the chip manufacturer which, in most cases, is NXP. It's called the Unique ID or UID and on genuine chips, it can't be changed.

What is a UID Scan ?

Some software, typically asset management applications, uses this unique UID to identify the tag. In these cases, we can provide the list of the supplied tag UIDs as a spreadsheet so you know what they are. This is a UID scan.

Do you need a UID scan ?

Unless you are using this type of software and it specifically needs it - no.

How can you find/read the UID of a tag ?

You can't see the UID just by scanning/reading a tag. You need to use an app. To see your tag's UID, download our Seritag NFC Encoder app and use the read function.

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ID Print Explained

What is an ID Print ?

It's where we visually print a unique ID, number, QR code and/or text onto each custom printed NFC tag.

The purpose of ID Print

If you have uniquely encoded NFC tags then a visual ID or matching QR code can be printed to align with the encoding. This can help identification and deployment.

Ordering colour printed tags with ID/QR code print

If you are ordering with custom full colour artwork, then add the first ID and/or QR code onto the artwork. We then dynamically swap this out when printing. Upload your ID print/QR sequence with your encoding data. See our ID Print guide for details on creating the spreadsheet.

Ordering ID Express white labels with simple black ID/QR code print

In most cases, you don't need to provide a layout. Just upload your encoding data (see our ID Print guide). We will send a pdf proof on the layout so you can check.

Multiple ID/QR code printing

You can have one or two unique IDs, a QR code or a mix. If you have more complex requirements with a larger number of unique elements, contact us first.

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Encoding

Encoding is the action of writing data onto the NFC tag, for example a URL/weblink or some text.

Option 1 : Encode yourself

It's easy to encode small quantities of NFC tags yourself. Download the Seritag NFC Encoder app, enter a URL and hold over the tag. Note: you can't encode authentication grade NTAG424 chips with normal mobile apps.

Option 2 : Seritag encoding

We have developed and built some of the most advanced encoding machines in the industry. For larger orders or where you prefer to leave encoding to us, choose Seritag encoding. You can upload/enter encoding data with your order, or send it through to us later with your order reference.

Single or Variable encoding

Single encoding is where every tag is encoded with the same data. Variable encoding is where we encode different data onto each tag, for example a sequence or unique codes. We can also encode in batches - where a set number of tags are encoded with each data, etc. See our in-depth guide to ordering NFC tags with encoding.

Locked, Unlocked or Password Protected ?

For standard chips (NTAG213, 215, ICODE), if we lock your tags, then nobody (even us) can change the data. If the tags are unlocked then anyone with a phone can change the data (and then lock them). In some cases, we also offer password protection where the data is locked - and can be changed - with a password.

In short: if you are using the tags personally or within your company, you might choose to leave unlocked. If they in public - lock them !

Encode for Ixkio

If you are using our ixkio tag management platform, then we can encode both standard (NTAG213, 215, ICODE) tags and authentication (NTAG424) tags direct to the platform.