ACR122U - USB NFC Reader

The ACR122U NFC Reader is a PC-linked contactless smart card reader/writer developed based on 13.56 MHz Contactless (RFID) Technology. Compliant with the ISO/IEC18092 standard for Near Field Communication (NFC), it supports not only MIFARE® and ISO 14443 A and B cards, but also all four types of NFC tags.

This works perfectly for the xNT,FlexNT and other ISO 14443 Tags.

Please note this is the official ACS ACR122U NFC Reader not a knock of version. You’ll find commonly online non-genuine versions which do not perform well and easily break. See here for the manufacturers official notice regarding it.


  • 13.56MHz ISO14443A/B RFID & NFC Read/Write Operation
  • ISO 18092, ISO 14443, PC/SC, CCID, EN60950/ISO 60950, CE, FCC, MIC, KC, VCCI, RoHS 2, USB Full Speed, Microsoft® WHQL
  • Operating Distance Up to 50 mm (depends on the tag type)


Smart Card Interface Support

  • ISO14443 Type A & B
  • FeliCa
  • 4 types of NFC (ISO/IEC18092) tags

Operating System Support

  • Windows®
  • Win CE 5.0 and 6.0
  • Linux®
  • Mac OS®
  • Android™ 3.1 and above

Using the ACR122U

Best software for reading and writing NFC tags Here. This device is also supported on a Mac as shown in the video bellow.

Dangerous KBR1 (ISO14443A)


The Dangerous Keyboard Reader 1 acts like a USB HID (Human Interface Device) keyboard. No drivers. No nonsense. Just plug in the KBR1 and UIDs read from any ISO14443A tag are sent to the host as keyboard input. The UID will be “typed” into whatever application has focus. Want to collect tag UIDs in a spreadsheet? Simple! Want a quick, uncomplicated way to log into your computer with your implant? Easy! Oh and did I mention the KBR1 gets excellent range with our xNT, xM1+, flexNT, and flexDF transponders?


  • No driver USB HID keyboard device
  • Read any ISO14443A tag UID as keyboard input
  • Use tag UID as quick easy computer login
  • Excellent read performance with the xNT, xM1+, flexNT, and flexDF!


Dangerous Things T-Shirts

Stranger Danger T-Shirt

“Stranger Danger” is a t-shirt design loosely based on the instant cult classic show Stranger Things.

Women’s Navy V-Neck T-Shirt

For the discriminating bio-hacker! Demonstrate your allegiance to bio-hacking the planet with our Vintage, Women’s, light-weight, Navy, Bella® brand T-shirt with our Dangerous Things logo on the front. These are fitted T-shirts, made of thin, cotton material and do run small, but are awesome during the hot weather months!

Hunter Cat - Card Skimmer Detector

The world’s only credit card skimmer dectector. Rapidly and reliably audit card readers - ATMs, PoS devices, etc - without risking your real data. Perfect for internal audits, corporate travelers and penetration testers.


Hunter Cat: ATM Card Skimmer Detector

The Hunter Cat is the world's first pocket ATM Card Skimmer Detector.
Card Skimmers are devices containing magnetic readers that are covertly added onto / into ATMs, allowing criminals to 'skim' the data off a card's magnetic strip.

Over time, Card Skimmers have become increasingly difficult to detect visually, and are no longer restricted to ATMs, appearing on self-checkouts, petrol pumps, bank doors, etc.

The Hunter Cat is a Skimmer Detector - allowing users to quickly audit a device before inserting their real card.

The device detects the number of magnetic heads that pass over the card, providing instant analysis: OK, Warning, or Dangerous.

Invaluable for multiple industry sectors


Internal Hardware / Fleet Auditing

Pen Testing

Provide clients with an additional audit service


Protect your company / employee cards from theft


Protect your bank account - especially when traveling

Hunter Cat Hands On: How to Use

The Hunter Cat consists of two Magnetic Head detectors, three LEDs, a reset switch and a battery. It's the same width and depth as a standard credit card, but slightly longer, allowing for the card to be easily inserted and removed.

It has four exposed pin pads, triggering the ATM mechanism to open the card tray.

Powering On the Device

First Use: To use for the first time, simply place a CR-2303 battery into the battery holder. The LEDS will flash four times - the device is ready for use.

Standard Use: Press the reset button. The device LEDs will flash four times, indicating that it is ready for use.

Sleep Mode: After fifteen seconds of inactivity - the device will cycle the LEDs two times, and go into sleep mode.


Using the Device

Insert and remove the device quickly (less than one second) as per standard "add/remove" ATMs.

It is important that the device is inserted and removed in less than one second. to provide accurate results.


The device will process the information, which will take approximate one second and display its audit: OK, Warning, Dangerous.

Based off this result, you can confidently use your bank card, or avoid using the device.

LED light-up NFC sticker

These tiny little light-up NFC stickers are mounted on siliconized 3M adhesive backing. They are small and flexible enough to fit on and wrap around a fingernail! When presented to contactless payment terminals, NFC smartphones, RFID card door locks, etc. the LED lights up! Sold in packs of 5.



PN532 [RFID and NFC Reader/Writer]

FlexNT Implant Finger

The Arduino compatible PN523 RFID reader/writer is capable of reading and writing to all ISO14443A/B compliant RFID and NFC tags. It also supports the NFC peer-to-peer standard, so two of these devices can talk to each other, or you can set up a peer session with a mobile phone. The board also has several switch-selectable I/O modes including I2C, SPI, and HSU (high speed uart). Easily add RFID and NFC capability to your next project with the PN532!


  • 13.56MHz ISO14443A/B RFID & NFC Read/Write Operation
  • Supports NFC peer-to-peer mode for direct communications
  • Switch-selectable I/O modes including I2C, SPI, HSU


  • The PN532 board with integrated NFC loop antenna
  • A card style tag with Chinese knock-off of the Mifare “Classic” S50 1K chip
  • A keyfob tag with Chinese knock-off of the Mifare “Classic” S50 1K chip
  • 4 jumper wires, 6 inches (15cm) long
  • A 4 pin angled IDC header
  • An on-board level shifter for 3.3v SPI and 5v I2C & Uart


User Manuals & Datasheets

Here is a PDF of the user manual for the PN532 kit.
The PN532 datasheet can be found here.
NXP’s user manual for the PN532 chip is here.
Click here for NXP’s Application Note for the PN532

Open Source

Here is the github repository for the PN532 which contains example Arduino code.

ProxGrind ChameleonMini REVG

ProxGrind ChameleonMini REVG

Powerful and portable RFID Emulation multi-tool with Bluetooth functionality.

Replace all your “magic tags” - Emulate, read, sniff and fuzz with one powerful device.

The ChameleonMini is an RFID Emulation Device, capable of simulating multiple types of RFID Tag Formats in one device.

The Chameleon Mini RevG by Proxgrind is newest and most powerful Chameleon Mini, providing enhanced performance, Bluetooth, and an expanded command toolset.

European Exclusive to Lab401 and the cheapest on the market. Now's the time to add this killer tool to your RFID toolkit.


Built for professionals: highest quality construction & performance.


Harness built in Bluetooth and bundled Android App for on-the-fly use.


Highest performance ChameleonMini device available.


High-quality case & built-in battery with huge standby time.


The ChameleonMini is an RFID Emulation Device, capable of simulating multiple types of RFID Tag Formats in one device.

Proxgrind's ChameleonMini RevG is the most capable RFID emulation tool available, providing:

  • Multiple Chipset Emulation
  • Read / Emulate Operations
  • MFKey32 Crack Support
  • Bluetooth & Android App
  • UID Sniff
  • UID Fuzzing / Manipulation
    • Read / Write Lock
      • Advanced Sniffing & Logging
      • Open-Source

      Backed by a strong community of active development, the Chameleon Mini is a must have tool for anyone interested in RFID.

      Wireless Functionality

      The Proxgrind ChameleonMini RevG is the first and only version of the device to include wireless functionality via Bluetooth. This patented technology, in conjunction with the free companion application for Android allows for unprecedented functionality for pentesters and researchers alike.

      • Configure and control all aspects of the device wirelessly
      • Save, restore, analyse and modify data dumps directly on your phone
      • Modify SAK/ATQA values in-app
      • Detect Sector Keys via reader
      • Manage keylists for MIFARE Classic® reading
      • Real-time device information

      Product Comparison

      There are several ChameleonMini devices available. The table below breaks down the differences in detail.

      If your are a penetration tester / researcher, or require wireless functionality, Lab401 recommends the ChameleonMini RevG by Proxgrind.

      If you are looking to store all your tags in one device, or size is the most important factor for you, Lab401 recommends the ChameleonTiny

      Feature RevG
      RevG Tiny
      RevE Rebooted
      Overview ⭐⭐⭐⭐⭐ ⭐⭐⭐ ⭐⭐⭐⭐ ⭐⭐⭐
      10/10 5/10
      Compatibility 10/10 8/10 10/10 4/10
      Read Distance 10/10 3/10
      8/10 6/10
      Bluetooth ✔️
      Technical Features
      MF32Key Crack ✔️ ✔️ ✔️
      Low Power Sleep
      ✔️ ✔️
      RF Field Wakeup ✔️ ✔️ ✔️
      Button Wakeup
      ✔️ ✔️ ✔️

      Auto-Power Off
      ✔️ ✔️ ✔️
      Product Features
      Case ✔️ ✔️ ✔️
      Li-ion Battery ✔️ ✔️ ✔️
      Replaceable Antenna ✔️
      8 LED Slots ✔️ ✔️ ✔️
      Battery Indicator ✔️
      Android App ✔️

      Tag Compatibility


      Card Codec Hardware Support Software Support Application Support
      Mifare Ultralight ISO 14443 A 106 kbit/s
      ✔️ ✔️ ✔️
      Mifare Ultralight EV1 ISO 14443 A 106 kbit/s ✔️ ✔️ ✔️
      Mifare Classic 1K/4K 4B/7B ISO 14443 A 106 kbit/s ✔️ ✔️ ✔️
      Mifare DESFire ISO 14443 A with higher data rates 🔵
      Lower Bitrates
      Possibly High Bitrate
      Lower Bitrates

      Work in progress
      Mifare DESFire EV1 ISO 14443 A with higher data rates 🔵
      Lower Bitrates
      Possibly High Bitrate
      Lower Bitrates
      Mifare DESFire EV2 ISO 14443 A with higher data rates 🔵
      Lower Bitrates
      Possibly High Bitrate
      Lower Bitrates
      Mifare PLUS ISO 14443 A with higher data rates 🔵
      Lower Bitrates
      Possibly High Bitrate
      Lower Bitrates
      NTAG (all types) ISO 14443 A 106 kbit/s ✔️ ✔️
      LEGIC prime LEGIC prime
      ISO 14443 A
      ISO 15693
      🔵 Possible

      🔵 Work in progress

      HID iCLASS 125 kHz
      ISO 15693
      ISO 14443 B


      🔵 Work in progress

      ePass ISO 14443 A
      ISO 14443 B
      🔵 Lower Bitrates

      ISO 15693 (All) ISO 15693 ✔️ 🔵 Work in progress


      Non 13.36MHz Tags The ChameleonMini framework only supports 13.56MHz tags
      ISO 14443 A 106 kbit/s
      ✔️ PCD->PICC direction
      🔵 PICC > PCD Possible

      ✔️ PCD->PICC direction ✔️
      ISO 14443 A High bitrates
      🔵 Possible


      Non 13.36MHz Tags The ChameleonMini framework only supports 13.56MHz tags
      Mifare Ultralight

      ✔️ ✔️ ✔️
      Mifare Classic 1K/4K 4B/7B
      ✔️ ✔️ ✔️
      Mifare DESFire
      ✔️ ✔️ 🔵 Work in progress

      What's included

      Shipping & Packaging

      • Each Chameleon is dispatched from Europe - no need to worry about slow shipping times, import duties or damaged goods.
      • Packed in a sturdy compact 85x130x45mm box.
      • We provide worldwide shipping with express options.

      Compatible Systems

      • Windows: XP, 7, 8, 10 (All Versions)
      • OS/X: 10.0 - 10.7 (All Versions)
      • Linux: Debian, Ubuntu, CentOS, etc (All Versions)
      • Android: Specific Builds

      Chameleon Resources

      Technical Documents

      The ChameleonMini RevG by Proxgrind implements patented technology from Info Wise Limited. Licence for use of the device for non-commercial purposes is included with device purchase.

      All commercial use of the ChameleonMini RevG by Proxgrind is subject to licence from Info Wise Limited.

      ProxLF antenna for the Proxmark3 RDV4

      The ProxLF antenna is finally here! Designed exclusively for use with the proxmark3 rdv4, this 125kHz “LF” antenna is so powerful, it can talk to our 125kHz implants like the xEM and NExT from 2cm away! It’s even so powerful it can even talk to the xEM while it is still inside the injection assembly needle!

      Proxmark-LF-Antenna Proxmark-lF-Antenna-connected

      More details

      Our 125kHz implants like the xEM and NExT contain the T5577 chip, which is capable of emulating many different types of 125kHz ID chips including EM41xx, EM42xx, HID ProxCard, Indala, AWID, and others. However the T5577 chip does not support tear protection, so if you attempt to change the configuration of the T5577 without a good coupling (i.e. a good matching antenna on the reader), it’s possible to “brick” the chip so it will not communicate properly. Take heart! The ProxLF is specially designed with a cylindrical inductor that shapes the lines of magnetic flux to perfectly couple with the small cylindrical antennas inside our x-series chip implants.

      Bundle Options

      • ProxLF + NExT Implant Bundle (NExT +LF xLED + Diagnostics Card) – Save £38.93!
      • ProxLF + Proxmark3 RDV4 – You can’t use the ProxLF without a Proxmark3 RDV4! - Save £20!
      • ProxLF + Proxmark3 RDV4 + NExT – Get everything you need to start! Save £52.93!
      Proxmark-LF-Antenna-NExT-Bundle Proxmark-LF-Antenna-NExT-Bundle

      Proxmark 3 RDV4 - Blueshark standalone module


      The Proxmark 3 RDV4 "BlueShark" Standalone Kit brings integrated, wireless standalone functionality to the Proxmark 3 RDV 4: 

      • Standalone Mode
      • Offline sniffing
      • Offline reading & simulation

      Built with penetration testers in mind, this upgrade consists of:

      • Bluetooth 2.0 EDR module
      • Rechargeable polymer lithium-ion Battery module
      • Aluminium case + heatsink
      • Tempered glass cover

      The high-grade aluminium case not only protects against bumps, scratches and shock, but also acts as a heat-sink, providing increased performance and read/write ranges for the Proxmark.

      Backward compatible with all Proxmark 3 RDV4 devices, and fully integrated into the official RDV 4 Github Codebase allows for:

      • Full Standalone Mode support
      • Full High-speed Bluetooth support

      What's included

      • 1x BLE Module
      • 1x Rechargeable Battery Module
      • 1x Aluminium Case

      Does NOT INCLUDE the Proxmark 3 RDV4, which must be purchased separately.

      Technical Specifications

      Charging Current: 200mA (Plugin USB Default Charging)
      Charging time: 2.5h


      • Power: 4dBm, -85 [email protected]
      • Distance: 6m (depending on the environment and device orientation)


      • Dimensions: 54.4 x 29.4 x 13.5mm
      • Weight: 24g

        Compatible Systems

        Assembly & First Use Instructions

        Full instructions on how to assemble the device are available via KSEC Tagbase.

        Shipping & Packaging

        • Each item is dispatched from Europe - no need to worry about slow shipping times, import duties or damaged goods.
        • Packed in sturdy packaging.
        • We provide worldwide shipping with express options.

        Proxmark 3 Bluetooth / Battery Module Unboxing

        Proxmark 3 BlueShark Module Assembly Video