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High Speed Industrial Radio Modem

Supplier: Datataker playlist_addCompare

The 905U-D radio modem module provides RS232 or RS485 connections by radio.

Price Guide (Inc GST): POA

It is a low cost wireless alternative for linking data loggers and supervisory computers.

The 905U-D has been designed to be easy to use and simple to install. It uses a part of the radio spectrum which does not require a radio license in most countries.

The module is fully integrated with radio, power supply, serial ports and microprocessor controller housed in a strong industrial aluminium case.


  • Radio data rate up to 115 200 bits/sec
  • RS232 and RS485
  • License-free frequency
  • Single hop distance to 20+ miles US model (5Km European model)
  • Repeater function for longer distance, unlimited repeater hops
  • Forward error correction, CRC error checking with ARQ
  • Turn-around time 5 msec
  • Radio signal strength and BER indication
  • Configurable on-line by Hayes AT commands or Windows configuration software
  • Transparent broadcast mode, peer to peer
  • Addressed mode, multipoint and point-to-point
  • Fast point-to-point mode
  • Low power mode with DTR control
  • On-line "dial-up" control using AT commands
  • Repeater funtionality in all units
  • Repeater routing via address selection
  • Security against cross-talk between systems


Specifications of the dataTaker Radio  Download (64kB pdf)

Brochure of dataTaker data loggers  Download: (1.5MB pdf)