Select Category..
 
Back ◂
Back ◂
Image of NFC Authentication Pack
Close up image of an NFC Authentication Pack
Detail of an NFC Authentication Pack
Side view of the NFC Authentication Pack
Works with:
Android
iPhone
Datasheets
Product Datasheets
NTAG424 Datasheet
Customers Also Purchased
NFC Disc Tags
Disc Tag Pack
White NFC Tags
Label Pack
NFC Garment Tags
Garment Tag Pack
  1. Store
  2. Starter Packs
  3. Authentication Pack

Authentication Pack

  • NTAG424 authentication chip
  • Variety of shapes and sizes
  • Includes some pre-encoded samples
The authentication starter pack is designed for testing and development of the more advanced anti-counterfeit NFC tags with NXP's NTAG424 chip. The pack contains the most popular stock items including garment tags, labels and tamper stickers.

These tags are not encoded and are provided in factory state for development purposes. They can be encoded with mobile phones (use our Seritag NFC Encoder app) to work as regular tags but cannot be encoded with a phone to act as an authentication tag. However, encoding as a standard tag will allow you to test scan distances. The tags will not respond on iPhones without encoded data.

We also include two pre-encoded authentication tags which direct through to our ixkio tag management platform. This allows you to see a simple demonstration of how the authentication process can work. To test, scan the NFC tag with a phone. Then wait a few moments and refresh the page in the browser. As the page hasn't been loaded directly from the scan, a 'failed' page will show.

This pack contains the following:

Stock CodeProduct
ST847 PVC Card Gloss NTAG424
ST933 25mm Garment Spec NTAG424
ST1027 40x25mm Wet Inlay NTAG424
ST929 29mm SlimDisc NTAG424
ST927 25mm Clear Disc NTAG424
ST924 20mm PPS Disc Tag NTAG424
ST926 25mm PVC Disc NTAG424
ST910 48x78mm Wet Inlay NTAG424
ST928 29mm White NTAG424
ST978 15mm Clear NTAG424 Type A
ST948 Scratch Tamper NTAG424
ST1005 22mm On-Metal NTAG424
ST982 Matt Black PVC Card NTAG424
ST1026 Signature strip Connect Card
ST1049 12mm x 22mm NTAG424 Garment
ST745 Printed Labels Sheet Express

Using NFC Tamper Labels

There are two main categories of NFC tamper labels - Destruct type (which stop working on tamper) and Detect type (which continue to work but can tell if a tamper has been made). Destruct labels have two sub-types : scratch and peel. Detect have two sub-types : break and capacitive. 

Tamper tags don't like movement. They work best on firm, solid and non-flexible surfaces such as glass or rigid plastics. 

Scratch Tamper

Scratch tamper tags are designed to disintegrate on an attempt to remove. The tags must be attached to a smooth, clean surface. If you are testing, give the label plenty of time (ideally 24 hours) for the adhesive to get a good grip. An attempt to remove will chip away at the tag and destroy the antenna. These tags can be placed behind other labels. 

Peel Tamper

Peel tamper tags have two layers which are designed to separate when an attempt is made to remove. The tags must be applied to a smooth, clean surface. As with scratch tags, give plenty of time for the adhesive to reach full strength before testing removal. On removal, the top layer will separate from the base layer destroying the antenna and preventing the tag working. 

Ixkio NFC Tag Management

What is tag management ?

NFC tag management allows you to dynamically control the destination URL 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 is designed as an engine for your NFC tags and works alongside your existing ecommerce or marketing website. You don't need to spend time and money to recreate your branding or content. Ixkio can be used as an API system for authentication or more commonly a redirect system - managing dynamic links. Of course, you can attach your own domain so the tags are encoded with your brand. 

Tags can be encoded by us at supply (free of charge for labels) or you can encode your own tags - including NTAG424 - usng our mobile app or your own mehtods. You can then manage and alter the tag destination using rules and dynamic data features to display pages from your exiting website. 

Ixkio provides additional powerful tools to protect your landing page when using authentication tags and can even pass tag related information from ixkio - such as serial numbers or prodict information - to be dynamically displayed on your page. We have even built a Shopify App to make integration easier for Shopify users. 

Getting started

Ixkio subscriptions can be purchased online at ixkio.com or contact us for more information. 

Pricing

Seritag Product Code : ST954

Price per pack : $32.44  (price excludes VAT)Show prices with VAT
Total Cost :
$-

(excludes VAT)

 

Product Data

NFC Chip NTAG424
Interface Specification ISO 14443 / 13.56 MHz / NFC Forum Type 4
Total Memory 416 Bytes (User)
Data Retention 50 years (estimated)
Metal Surfaces (?)Not suitable
Unique Print (?)Not Available
Availability Stock Item - Immediate Dispatch
Delivery Format Packs
Customer Information
NFC Applications
Seritag
Contact
©Copyright 2025 Seritag.
Seritag is a trading name of TabDesk Ltd, a UK Registered company 10474154. VAT Registration Number GB256328005.
☰ Seritag
$
£ GBP € EUR $ USD
×

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.

×

Print Templates

If you prefer not to create your own artwork, you can use one of our preset templates. Select a template, select your preferred colour and text and (optionally) upload your logo. We create a pdf proof for you to check, tweak or amend and then we go to production !

The Templates

Template Colour

Your Logo

Upload your logo now or send it to us later. We can work with most graphics formats and we think it won't print well, we'll discuss options with you.

PDF Proof

Once you've placed your order, we will quickly create a pdf proof and email it back to you to check. We don't go to production unless you are 100% happy.

×

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.

×

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.

×

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.