The PermaNET SU leak detection loggers are an integral component of our product lineup. These loggers serve as acoustic sensors affixed to the external surface of clean water distribution pipes. The leak detection process involves two main steps: initially, the loggers gauge the noise level emitted by the pipes and assess it by comparing it against a predefined threshold. 

Permanet SU
Permanet SU


While the PermaNET SU retains the industry-leading features of the PermaNET+ system, it combines a leak noise sensor with 4G LTE cellular communications technology into a compact single unit.

Designed specifically for smaller and more challenging installation environments, PermaNET SU is robust and durable. It is fully compatible with PermaNET Web, the online data viewing and analysis platform, which combines to provide a GIS map-based display and full audio and correlation facilities.


Once installed, leak data is calculated using the proven PermaNET algorithm, with all information transmitted via low-cost 4G LTE cellular connectivity. This removes the requirement for expensive site visits and “drive-by” data retrieval.

PermaNET SU allows leakage teams to monitor the status of each logger deployed from a map-based web dashboard on any internet-enabled device.

Once the presence of a leak has been identified, secondary measures can be used to check and remove ‘false positives’ and correlate the leak’s position.

Key Features and Benefits

  • Single compact unit: combines leak noise sensor and 4G LTE cellular communications into a single compact unit
  • Robust and durable: designed specifically for smaller and more challenging installation environments
  • Quick response: enables leakage teams to respond quickly to specific locations when a leak is detected
  • Installation confirmation: daily check to confirm logger orientation; will alarm if a problem is detected.
  • Secondary validation: 
    • Aqualog – detailed noise histogram to reduce ‘false positives’
    • Remote leak audio file recordings
    • Remote correlation to localize leak position
    • Fully waterproof: the IP68 rating has been tested at 10m depth over 24 hours
    • Easy to use: compatible with the Deployment app. Select features can be programmed through PermaNET Web.
    • DataGate 3 is a web-hosted data server that provides a comprehensive and secure remote data handling solution. It enables data to be received quickly from the data loggers, conveniently and reliably for viewing at Omnicoll or with another web-based data management system.
    • PermaNET Web: software supports: 
      • Correlation
      • Map view
      • Aqualog
      • Select GIS file formats.
      • Remote configuration
      • Filtering
    • External antennas: for improved signal strength (contact FCS for more information)

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    FCS can offer the complete turnkey solution including installation, data delivery exports and viewing platforms, enabling reliable meter reading and energy management.