Installed at a critical height in a chamber, SpillSens uses digital positioning technology to monitor sewer levels constantly and effectively.

Programmed with three alert levels, SpillSens indicates green when conditions are normal, amber when levels are rising and red when critical levels are reached.

Ideal for Incident Prevention Monitoring, SpillSens support compliance with Outcome Delivery Incentives and helps protect the environment by reducing pollution incidents.

ATEX (Zone 0) certified, SpillSens 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.


Particularly effective in small customer-side sewers, SpillSens significantly reduces incident rates, lowers clean-up costs and helps to improves ODI performance.


Key Features and Benefits

  • Three levels of alert: green, amber and red; based on the angle of the sensor:
    • Green - vertical orientation, network operating as expected
    • Amber - movement in orientation, high alert triggered
    • Red - sensor movement >100o, high/high alert triggered
  • Intrinsically safe: certified for use in Zone 0 hazardous areas
  • No moving components: designed to have no moving parts, unlike traditional steel ball and micro-switch state sensors
  • Robust design: durable materials not adversely affected by long-term exposure to waste water environments
  • Cable length options: available with 1m, 2m or 3m cable lengths
  • Compatibility: works in conjunction with IS Log and various other HWM data loggers
  • Online data viewing: via SpillGuard, providing Map View and a variety of valuable features

Inflow and Infiltration - July 2022


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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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