ATX - 125 kHz ATEX & IECEx prox certified readers

ATX - 125 kHz ATEX & IECEx prox certified readers

Proximity access control in explosive environments!

The ATX 125 kHz is an ATEX & IECEx certified proximity reader for all your RFID access control applications 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, refineries or nuclear power plants.

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

ATEX & IECEx certifications


logo atex iec iecex


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:

petrochimical us secu plateformes petrolieres us secu Distilleries us
Petrolier US secu Centrales nucleaire US secu Mines us

Multi technos

Multi-technology prox identification

The ATEX & IECEx certified proximity reader enables to read a lot of 125 kHz chips: EM4200, EM4x50, T5557 emulated 4102…
logo em1


Picto Optimise Performances

Best reading performances and reliability

The ATX 125 kHz ensures excellent reading performancesThe ATX 125 kHz ensures excellent reading performancesin speed and reading distance. The proximity reader offersreliable reading distances: up to 15 cm* for a card detection in less than 50ms depending on the environment.



Easy integration

The ATX 125 kHz readers are easy to integrate in your existing or new access control system. They are available in a wide choice of communication interfaces (TTL, RS232 and RS485) and protocols for an easy adaptation with your system.


Data sheet

  • Frequency
    Frequency: 125 kHz
  • Chip
    Chip: EM4200, EM4x50, T5557 emulated EM4102
  • Functions
    Functions: Read only
  • Interfaces
    Interfaces: TTL - ISO2 protocol (Data Clock), Wiegand / RS232 / RS485
  • Reading distances
    Reading distances: 0 - 12 cm
  • Power supply
    Power supply: 12 VDC (9 - 15 VDC) / Typical consumption 100 mA - Max 125 mA
  • 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): 270 x 310 x 175 mm
  • 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 - Water and dust resistant

 *ATX 125 kHz is available programmed with certain formats used by HID® Global (HID 26, 30 and 37 bits cards).

ATX new visuel

     CE FCC Logos grey 250px

Part numbers

Picto R Read only



ATX-R11-A/E01-xx/3 (marking T5) / ATX2-R11-A/E01-xx/3 (marking T6)


ATX-R12-A/E01-5c/3 (marking T5) / ATX2-R12-A/E01-5c/3 (marking T6)


ATX-R13-A/E01-7s/3 (marking T5) / ATX2-R13-A/E01-7s/3 (marking T6)

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