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Multi-parameter Water Sensors

With innovative water quality sensors, Proteus Instruments leads the way against water pollution worldwide. An award-winning, patented, multi-parameter, real-time sensor platform to accurately and reliably measure BOD, COD, TOC and Coliforms (total, E. coli or faecal) in permanent and temporary applications.


Proteus is the world’s first scientifically proven real-time sensor for measuring BOD that can measure a wide range of water quality for environmental and industrial applications. A multiprobe that measures your choice of parameter, all in one package, can deliver data in the most challenging field conditions. 

Seraya Engineering Pte Ltd is an authorised distributor of Proteus Instruments Ltd manufactures The Proteus, a patented Real-Time Water Quality Water Monitoring Sensor that monitors:


  • Dissolved Oxygen

  • Pressure

  • Chloride

  • pH

  • Temperature

  • Optical Brighteners

  • Nitrate


  • Coliforms (faecal, E. coli, total)

  • Tryptophan

  • Refined Oils

  • Ammonium

  • EC / Salinity / TDS

  • Turbidity

  • Crude Oils

  • CDOM

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Proteus Instruments was set up in 2018 and is the world’s first scientifically proven real-time sensor platform to accurately and reliably measure BOD, COD, TOC and Coliforms in a wide range of water quality, environmental and industrial applications.

In the last 20 years, the focus by many has been on using UV-VIS to measure various water quality parameters. Although this is a suitable technology for some parameters it has proven less reliable for measuring BOD in particular. By using fluorescence and the latest technology and scientifically proven algorithms, it is now possible to measure BOD accurately and reliably negating the need for UV-VIS technology. 

Proteus represents a break-through disruptive technology that can change the whole perception of organic load monitoring. Such is the innovation of the Proteus that it has been patent protected (GB2553218).

Proteus Instruments presented with the Queen's Awards for Enterprise: Innovation.

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Pollution Detector That Does Not Need a Lab

Get in touch to arrange a session with us at Seraya Engineering to learn more about Proteus now

Seraya Engineering Pte Ltd

2 Jurong East Street 21

#04-23, IMM Building

Singapore 609601

Tel: +65 6252 1737

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