PermaNet F

PermaNET F

PermaNET F combines a leak noise sensor with versatile telemetry technology into one single unit, creating a fixed network to monitor leakage.

Retaining the industry leading features of the PermaNET+ system, PermaNET F is designed specifically for smaller and more challenging installation areas.

PermaNET F is fully compatible with PermaNET Web, the online data viewing and analysis platform, combining to provide map-based display, GIS interface and full audio and correlation facilities.



Once installed, leak data is calculated using the proven Permalog algorithm, and data is transmitted via low cost cellular telemetry.  This removes the requirement for expensive site visits and “drive by” data retrieval.

PermaNET F transmits data through an integral modem with GPRS/2G, 4G, LTE-M (Cat-1) and other NBIoT cellular options available.

PermaNET F allows leakage teams to monitor the status of each deployed logger from Google Maps compatible software using any internet enabled device.

Leaks are identified immediately and once the presence of a leak has been identified, secondary measures can be used to check and remove ‘false positives’ and also to localise the leak position.


Key Features and Benefits

  • Single compact unit: combines a leak noise sensor and telemetry into a single compact unit
  • Robust and durable: designed specifically for smaller and more challenging installation areas
  • Quick response: enables leakage teams to respond quickly to specific locations when a leak is detected
  • Telemetry: NBIoT LTE-based cellular communication standard with fallback 2G capability
  • Secondary validation: 
    • Aqualog - detailed noise histogram to reduce 'false positives'
    • Audio - remotely listen to the noise
    • Remote correlation to localise leak position
  • Fully waterproof: the IP68 rating has been tested at 10m depth over a 24 hour period
  • Easy to use: compatible with HWM Deployment app. Select features can be programmed through PermaNET Web
  • PermaNET Web: software supports: -
    • Correlation
    • Map view
    • Aqualog
    • Select GIS file formats
    • Remote configuration
    • Filtering
  • External antennas: support improved signal strength (contact HWM for more information)

Subscribe to our Newsletter

By subscribing to this newsletter you consent to receiving promotional e-mails from HWM-Water. You can unsubscribe at any time by clicking the unsubscribe link in the e-mail.

HWM-Water Ltd
Ty Coch House
Llantarnam Park Way
Cwmbran, NP44 3AW
T: +44 (0) 1633 489 479 F: +44 (0) 1633 877 857 E:
The Queen's Award for Enterprise: Innovation 2017
A Halma company
ISO 9001 ISO 14001 ISO 18001 ISO 27001