CTU modules

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Netronix CTU-D


The product may vary in appearance. Before purchasing, please read the description of the product, its technical documentation or contact us.

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CTU-D series devices are contactless card and transponder RFID readers, with support of the Unique, HITAG, Q5 and HID proximity standards operating on 125kHz frequency. Modules (depends on model) have RS232, RS485 or RS232TTL, SPI, I2C, 1-Wire, WIEGAND interfaces.

Product have following functionalities

  • support of Unique, HITAG-1, HITAG-S, Q5 or HID transponders,
  • built-in antenna,
  • card memory with build-in lock driver,
  • wide range of communication interfaces (depend on version),
  • built-in relay and buzzer,
  • built-in push-button for reset to default settings,
  • 2 configurable inputs/outputs,
  • two-state outputs control,
  • read-out of two-state input,
  • changeable format of sending ID,
  • data password protected,
  • software update via RS-232 interface using NEFIR program.

The full model name (P/N) of the devices consists of the name of the CTU family and subsequent letters after the hyphen, corresponding respectively to:

  • support for the proximity standard (D, M, P),
  • interface (2, 4, 5, S),
  • inputs / outputs (R, N),
  • support for additional functionalities (M).

For example CTU-D5R reader has support of Unique, HITAG, Q5 i HID transponders, RS232TTL, SPI, I2C, 1-Wire, WIEGAND interfaces and build-in relay. A full list of available parameter combinations can be found in the technical documentation.


Supported standardsUnique, HITAG, Q5, HID
Operating frequency125kHz
Read rangeUnique - up to 11cm, HITAG - up to 12cm, HID - up to 7cm (depends on transponder)
InterfaceRS232, RS485, RS232TTL, SPI, I2C, 1-Wire, WIEGAND
Supply voltageD2R and D4R version 7 - 16V, D5R version 4,5 - 5,5V
Max. current consumption100mA
Working temperature-20°C to +65°C
Size (mm)79.5 x 79.5 x 12