Radio Data Networks deliver Measurement, Monitoring, Reporting, Control and Alarms over a wide variety of Secure Communication Channels Including Licenced Radio, Satellite, TETRA , PMR and DMR all without SIM cards or connection to the Internet.  Mission Critical IoT and Telemetry which we call the Critical Network of Things CNoT.  With decades of experience our multi-award winning technology can be found deployed across the Utility, Industrial, Commercial and the Healthcare Sectors protecting Assets, Critical Infrastructure ( in line with the European Critical Asset Infrastructure Directive 2008/114/EC) and the Environment for which we already deliver over 200-million messages per annum.

IoT Critical Network of Things

Example of a Critical Network of Things

Unlike IoT Providers who are tied to their brand, we are agnostic and able to offer the right solution without bias due to vested interests.

Our Systems can be custom configured to measure and report virtually any parameter imaginable from both above and even below Ground!

Sensors and communications can deployed in areas devoid of reliable cellular coverage, access to the internet, mains power or other infrastructure. We can include regular 5-minute health messages and instant alarm reporting, yet can achieve up to 10-years battery life, all things that IoT struggles to deliver.

We have Data Gateways that provide a unique 100% cyber secure interface into Satellites, BMS, Telemetry, Tetra, DMR and SCADA. Our services have already been adopted by 5-Utilities, 2-Government Agencies, scores of public bodies and private companies operating in the “Mission Critical” sector. Data can be used for simple remote monitoring, real-time local control and autonomous incident mitigation.


 Applications Include:

  •  Mission Critical Infrastructure Status Reporting
  •  Satellite Small Packet Data Communication
  •  Flood Monitoring Systems
  •  Critical Asset Protection – Security, Flooding, Fault & Condition Monitoring
  •  River Level & Flood Barrier Control
  •  Combined Sewer Overflow (CSO)Event Duration Monitoring with 2 or 5-minute Resolution
  •  Blocked Sewer Alarms for Buildings from Hospitals and Industrial Complexes
  •  Sewer Network Blockage Monitoring, Event Mitigation & Pump Control
  •  Boreholes & Groundwater Monitoring and Security
  •  Pollution Monitoring and Mitigation – Valves and Pump Control
  •  Storm Tank Level Monitoring – Alarms and Control
  •  Real-Time Control Systems
  • Bespoke Radio Telemetry Systems from 4-20mA to SDI-12

 Mission Critical IoT – CNoT

  • Regular Health Messages – Standard on Ground Based Systems
  • Local Real-Time Control – Options
  • Gateways for Direct Interface with Legacy Systems!
  • Multiple Receiver Locations – Multi-Redundant Systems
  • 100% Cyber Secure – Guaranteed
  • No Connection  to the Internet Required
  • No SIM Cards Required
  • Long Battery Life – Up to 10-years
  • Licenced and Exclusive Radio Spectrum Operation for Ground Based Systems
  • Full Ownership of Data


Members of:

Radio Data Networks Limited Trade Body Membership


Sales & orders

Please call your local distributor for prices on products, systems and solutions. Spares and accessories may also be purchased through our online web portal