SonicSens 3

SonicSens 3 uses intelligent ultrasonic technology to monitor networks and prevent surcharge and spill events, ensuring cost-effective compliance and damage limitation.

When deployed to conduct Event Duration Monitoring at Combined Sewer Overflows (CSO), SonicSens 3 alerts to surcharges, reporting event occurrence, time and duration, and because it avoids contact with its environment there is little need for scheduled maintenance.

ATEX (Zone 0) certified for use in hazardous environments, SonicSens 3 is dependable and, when paired with our ATEX Battery Pack, can deliver accelerated sample rates and increased dial-in frequency whilst maintaining a five-year battery life.


Avoiding contact with its environment, thereby reducing the risk of contamination and lowering maintenance requirements, SonicSens 3 delivers the highly accurate level data used to support effective network monitoring and decision-making.

  • Intelligent sensor: compatible with HWM telemetry data loggers, benefitting from the latest alarm, reporting and dial-in features
  • Dependable: the logger will send an alarm if measurements are not possible
  • Flexible range: AutoRanging configuration covering ranges of 150mm-1m, 200mm-3m, 300mm-6m and 300mm-10m
  • Long battery life: 5 years at 15 minute sample rate
  • Fully waterproof: unit is IP68 rated
  • Simple installation: multiple pre-set options in software, including automatic level/flow conversion
  • Power options: unit powered by logger, external battery pack available to extend system life and support more frequent call-in
  • Unwanted echo filter: logger can be set up via desktop IDT software to ignore unwanted echoes such as ladder rungs, supporting deployment in challenging installation sites
  • Certification: certified for use in Zone 0 hazardous areas

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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: [email protected]
The Queen's Award for Enterprise: Innovation 2017
A Halma company
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