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Radiometrix’s TXL2 transmitter and RXL2 receiver modules are half-duplex multi-channel OEM radio modems available in the company’s SIL standard footprint.

Operating in the European licence-free 433MHz ISM (Industrial Scientific and Medical) frequency band, with a choice of five user-programmed channels, these products can be employed to form transparent one-way radio data links supporting data rates of 9600bps over a line-of-sight range of 500m (typical).

Unlike raw FM radio-module alternatives, these modules take care of preamble, synchronisation, bit balancing, error checking and noise squelching, as well as all transmit timing, valid data identification and datastream buffering activities.

This allows a data link to be set up with the minimum of engineering effort.

Each module can be assigned one of eight unique addresses so that a multiple radio-link network can be established, provided no two modules are attempting to transmit at the same time on the same channel.

The transmitter has an output power of 10dBm (10mW), while the receiver has a sensitivity of -107dBm.

The modules require a 5V power supply, drawing just 28mA for transmitting and 22mA for receiving.

They have an operating temperature range of -20C to +70C.

Both the transmitter and receiver comply with EN 300 220-2 and EN 301 489-3 standards.

Key applications for these modules include handheld/portable terminals, industrial/commercial telemetry systems, data loggers and in-building environmental-monitoring systems.

Pioneers of Low Power Radio – Since 1985

Based in the UK, Radiometrix is recognised as the leading global developer of ISM Band/ SRD FM low power radio modules.

We design and manufacture high-quality and cost-effective VHF and UHF radio modules that cater for the wireless needs of OEMs worldwide. Available on all major frequencies (151, 169, 173, 433, 458, 868 & 914 MHz), we offer a wide variety of modules to suit a diverse range of licence-exempt and licenced applications. The off-the-shelf modules can be customised to meet specific requirements.

Product portfolio

  • 12.5kHz, 25kHz Narrow Band & Wide Band FM
  • Transmitters, Receivers, Transceivers & RF Modems
  • Single-channel and Multi-Channel operation
  • 151, 169, 173, 433, 458, 868 & 914 MHz
  • UHF & VHF ISM bands
  • FCC Part 90 Compliant, FCC Part 15 compliant
  • Class 1 performance
  • Encoders & Decoders for RF remote control
  • Radio Packet Modems
  • Radio Packet Controllers
  • Evaluation Kits
  • Accessories – Antennas & Connectors


    Why Radiometrix?

    • Products designed and manufactured to the highest standards
    • Superior RF Performance, low power requirements
    • Radiometrix products are designed and verified to fully comply with FCC/ETSI or regional radio standards.RoHS Compliant
    • RoHS Compliant radio modules (lead-free)
    • Comprehensive portfolio of products
    • We test every single module


    • In-house technical support prior to, during and after sales
    • Custom design – in-house R&D and design
    • Long term availability of our products
    • Highly competitive volume pricing – contact Sales for quotations
    • Reduced time-to-market
    • Flexibility – we will do our very best to find a solution that meets your requirements

    Expertise – Low Power Radio is what we do

    • Over 25 years experience specialising in low power radio
    • Reputation for technical excellence
    • Team of leading RF industry engineers 

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