xNT Packaging (front)
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xNTi [xNT Tag + Injection Kit]


  • 13.56MHz ISO14443A & NFC Type 2 NTAG216 RFID chipset
  • Encased in a 2x12mm cylindrical biocompatible glass casing
  • Pre-loaded in injection syringe assembly
  • Fully NFC Type 2 compliant – compatible with all NFC devices
    EU customers can order this product direct from Digiwell!

    In stock

    Product Description

    The xNTi kit contains the ISO/IEC 14443-A and fully NFC Type 2 compliant NTAG216 based xNT tag encased in a 2x12mm cylindrical USP grade lead-free Schott 8625 biocompatible glass casing, which is pre-loaded into a sterile injection assembly. The xNT tag can be read and written to by many types of 13.56MHz RFID systems, and all NFC compliant reader/writer devices including USB devices and all NFC capable mobile phones. The tag itself was designed by Dangerous Things and production of it was successfully crowdfunded via an Indiegogo campaign. Thanks again to all the backers who made this possible!

    Kit Equipment

    – 1x sterile xNT 2x12mm bioglass tag pre-loaded in EO gas sterilized injector assembly
    – 1x single use ChloraPrep skin prep ampoule with cotton scrub tip
    – 1x sterile gauze pad for post-injection wound care
    – 1x sterile anti-bacterial adhesive bandage
    – 1x pair of non-sterile, non-latex surgical gloves

    WARNING This kit definitely contains dangerous things. The xNT transponder device has not been tested or certified by any regulatory agency for implantation or use inside the human body. Use of this device is strictly at your own risk.


    Please read the FAQ!!!


    Dangerous Things prefers our customers locate one of our professional body piercing or body modification partners to complete the installation of this product. If no partners are available in your area, you should be able to find a professional who is willing to assist you. We have written these documents to help introduce new professionals to the world of implantable transponders; Dangerous Things Professional Guides

    Tag Details

    – 13.56MHz ISO14443A & NFC Type 2 compliant NTAG216 RFID chipset
    – 7 byte UID and 880 bytes of user read/write memory
    – Unlimited memory reads. Rated for 100,000 writes per memory block.
    – Encased in a 2mm by 12mm USP grade lead-free Schott 8625 bioglass casing
    – No Parylene C or porous polypropylene “anti-migration” coating means easy removal/replacement
    – Pre-loaded into syringe injection assembly, sterilized in EO gas, and shipped in sealed sterilization pouch

    NFC Compatibility

    FULLY COMPLIANT: The xNT is based on the NTAG216, which is considered by the NFC Forum to be a “Type 2” tag. This means it is compatible with all devices which conform to NFC specifications, including all NFC enabled phones and tablet computers.

    Android Mobile App

    The xNT contains an NTAG216 chip which supports lock bytes and 32 bit password protection options. Unfortunately, none of the NFC apps we’ve seen support dynamic lock bit setting or password support, so we wrote our own called Dangerous NFC! This app will ensure your xNT cannot be accidentally or maliciously be forever locked into a read-only state. Password support means you can protect your tag from unauthorized reading or let everyone read it but require a password to program or update your xNT.


    Read Range

    Passive RFID and NFC tags are magnetically coupled devices that pass power and data over a shared magnetic field. This means their effective read range depends on how well both of the antenna coils in the tag and reader couple with each other. This typically means the shape, size, and orientation of both antennas must be complimentary. Unfortunately, most reader devices, including mobile phones, typically have antennas designed with thin flexible PCB traces made into blocky rectangular shapes that lay along a flat plane. These antenna designs are great for coupling with and reading large flat label tags or card style tags and access cards, but they have a hard time coupling to the very small cylindrically shaped antenna coil inside our implantable tags. Most mobile phones and reader devices have a “sweet spot” that must be located and used each time to get consistent reads. Other devices, such as the Samsung Ezon digital deadbolt lock, tend to use wire wound coil antenna loops inside, which work much more reliably with small glass tags like our x-series tags. Please do not expect your mobile device to achieve the same read range with our x-series tags that you normally get with a label tag or card. For examples of this, please check out the following video posts; reading with USB device, and reading with a mobile device.

    Tag Testing

    Because the xNT tag comes pre-loaded inside the injection syringe, you cannot test the tag before it is ejected from the syringe. Because of this, we performed a read test on every single xNT tag before it was inserted into the injector assembly and sterilized.

    Return Policy

    Sales of all RFID tags are final and no returns will be accepted. I keep a tight chain of custody on all products through manufacture, sterilization, and shipment. I would not want to sell a tag that has been returned and you probably wouldn’t want to buy one either… so before you purchase, do your research and be sure you know you’re getting the correct product.

    Data Sheet

    NTAG216 specification and NFC Type 2 Operation

    Also check out NXP’s NTAG product page

    Compatible Products

    The xNT is compatible with the following products:

    PN532 NFC reader/writer

    PN532 NFC reader/writer

    Samsung Ezon SHS-3320 Digital Lock

    Samsung Ezon SHS-3320

    Additional Information

    Weight 0.125 lbs
    Dimensions 2.75 x 4 x 0.125 in