ATX - 13.56 MHz LEGIC® Advant  ATEX & IECEx certified readers

ATX - 13.56 MHz LEGIC® Advant ATEX & IECEx certified readers

The ATX 13.56 MHz LEGIC® is a high security ATEX & IECEx certified proximity reader for all your access control requirements in explosive environments. STid’s range of ATX RFID products can be used to meet all your contactless identification needs in the chemical and petrochemical industries, in refineries or in nuclear power plants. The ATX reader boasts the latest security technology from STid, ensuring secure, confidential communications with full data integrity between the credential, reader and management system.

  • STID 144 bis
  • STID 142
  • STID 144
  • STID 143

ATEX & IECEx certifications


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STid has developed a certified RFID reader range to meet the two key industry requirements - security and reliability.

Our solutions are compliant with all the international standards of the market: ATEX (EN60079) & IECEx certifications; European Directives (99/92/EC and 94/9/EC). They are well suited for all your people identification applications in explosive and isolated environments.

The EX II 2 GD IP66 explosion-proof casing is well-suited to the chemical, petrochemical and nuclear industries, among others.

Marking T5

EC type examination certificate: BKI 08 ATEX 0048
Approved type: GUB Ex II 2 GD
(G: gas / D: Dust)
II 2 G Ex d IIC T5 Gb
II 2D Ex tb IIIC T100°C Db IP66

Marking T6

EC type examination certificate: BKI 08 ATEX 0048
Approved type: GUB Ex II 2 GD
(G: gas / D: Dust)
II 2 G Ex db IIC T6
II 2D Ex tb IIIC T85°C IP66

Access control applications in ATEX areas

Our solutions are well designed for all your identification applications requiring explosion-proof equipments:

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Petrolier US secu Centrales nucleaire US secu Mines us

Welcome to high security

Anssi flat

STid is the first RFID manufacturer to have received First Level Security Certification (CSPN). It’s a recognition of our unique know-how, the technological and security expertise that are implemented in your access architecture, whether new or existing.

The ATX readers use the latest LEGIC® contactless chip technologies with new data security mechanisms. All public encryption algorithms can be used (3DES, AES, SHA, etc.), which are recommended by official data security agencies (such as the RGS of the French national agency ANSSI).


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STid has developed smart software tool to remain in control with your security. The SEGIC software lets users, installers and integrators easily and securely configure their access control readers.


logo sscp

The readers are compliant with the latest generation of SSCP open protocols (STid Secure Common Protocol). Recommended by the French national agency ANSSI, it uses data encryption (AES) and two-way "reader-controller" authentication to ensure security before any communication is allowed between the reader and the management system.

Data sheet

  • Frequency
    Frequency: 13.56 MHz
  • Standards
    Standards: ISO14443A, ISO15693, LEGIC® RF / Certification: CE
  • Chip
    Chip: LEGIC® Advant & Prime, CSN of MIFARE® Ultralight® & Ultraligh® C, MIFARE® Classic & Classic EV1, MIFARE Plus® (S/X) & Plus® EV1, MIFARE® DESFire® 256, EV1 & EV2, SMART MX, NFC (HCE), PicoPass® (CSN only), iCLASS™ (CSN only*) chips
  • Functions
    Functions: Read only: CSN or private ID (sector / file) / Read write: SSCP
  • Interfaces
    Interfaces: TTL - ISO2 protocol (Data Clock), Wiegand / RS232 / RS485
  • Reading distances
    Reading distances: 0 - 4 cm / 0 - 1.57’’
  • Power supply
    Power supply: 7 - 28 VDC / Typical consumption 130 mA / 12 VDC
  • Material
    Material: Aluminum alloy & stainless steel, epoxy grey RAL 9006
  • Color
    Color: Grey
  • Dimensions (h x w x d)
    Dimensions (h x w x d): 310 x 270 x 175 mm / 12.2’’ x 10.63’’ x 6.89’’
  • Operating temperatures
    Operating temperatures: -20°C to +70°C / -4°F to +158°F (marking T5) / -20°C to +50°C / -4°F to +122°F (marking T6)
  • Protection
    Protection: Reinforced vandal proof structure
  • Resistance
    Resistance: IP66 level - Weather, water and dust resistant (CEI NF EN 61086 certification) / Humidity: 0 - 95%

*Our readers read only the iCLASS™ UID / Chip Serial Number. They do not read secure HID Global’s iCLASS™ cryptographic protections.

ATX new visuel

     CE FCC Logos grey 250px

Part numbers

Picto R Read only


Secure - TTL:

ATX-R31-L/LE2-xx/3 (marking T5) / ATX2-R31-L/LE2-xx/3 (marking T6) 

Secure - RS232:

ATX-R32-L/LE2-5AB/3 (marking T5) / ATX2-R32-L/LE2-5AB/3 (marking T6) 

Secure - RS485:

ATX-R33-L/LE2-7AB/3 (marking T5) / ATX2-R33-L/LE2-7AB/3 (marking T6) 

 picto RW Read write


 Secure - RS232:

 ATX-W32-L/LE2-5AA/3 (marking T5) / ATX2-W32-L/LE2-5AA/3 (marking T6) 

 Secure - RS485:

 ATX-W33-L/LE2-7AA/3 (marking T5) / ATX2-W33-L/LE2-7AA/3 (marking T6) 

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