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Sewers and Overflows

Tracking TSS (Total Suspended Solids) is crucial for gaining valuable insights into water quality evolution. Additionally, it serves as an alarm system for breakthroughs or overflows.
The durable Olpas Tentacle sensors are versatile, capable of installation in open water, rivers, or in challenging environments such as sewers and overflows.

Sewers and Overflows

Designed for remote monitoring, Olpas Tentacle Sensors use less energy, are accurate and resistant to fouling.


Each measurement takes just seconds (warm-up + measurements) before the sensor enters sleep mode again, minimizing power usage. Combined with extended unmatched maintenance intervals and low drift-tendency, these sensors provide the most practical and cost-effective solution for reliable, long-term remote monitoring.

"The impressive fouling resistance of the OLPAS Technology, makes the Olpas Tentacle sensors the ideal solution to measure TSS in sewers and urban waste water: the sensor requires significantly less maintenance and it has by far the lowest tendency to drift compared to our whole install base of TSS and Turbidity sensors."

Key features


IoT-ready

  • IoT-ready, with digital output optimised for energy efficient data communication

  • Low energy usage

  • Easy to connect to an external powersupply (batteries or solar)


Olpas TSS sensors are suitable for measurements in

  • Sewers, Sewer overflows and CSO spills (stormwater)

  • Influent of WWTPs (Waste Water Treatment Plants)

  • Open waters, canals and natural rivers


Other measurements available:

Next to TSS-measurement in challenging environments, Olpas also offers TSS measurements in WWTP-effluent (low concentrations), in various WWTP-applications, and in bulk water and lakes.

Available Products

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TSS concentration in challenging environments
OTE-TSSC

TSS concentration in challenging environments

Olpas TSS sensors are pre-calibrated, drift-resistant and required very few maintenance; thanks to an industry leading fouling resistance and minimal sensor drift. 

Sewers, Overflows (CSOs / SSOs) and Stormwater

Sewers, Overflows (CSOs / SSOs) and Stormwater

TSS sensors deliver real‑time concentration alerts in sewers and overflows (CSOs/SSOs). The best in industry for resistance to fouling and drift.

Surface water

Surface water

SSC and TSS sensors monitor suspended solids and sediment in open waters in a wide range of particle sizes, independent of temperature changes or changes in water colour, and with season‑long accuracy.

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