Blue decorative line graphic used in ProDetec branding

Turbidity Sensors & Monitors

ProDetec supplies advanced turbidity sensors and turbidity monitors designed for accurate, reliable measurement of water clarity in industrial, municipal, and environmental applications across Australia. Monitoring water turbidity is critical for water treatment plants, wastewater facilities, industrial processes, and environmental compliance programs, where precise measurement of suspended particles ensures safety, regulatory compliance, and operational efficiency.

With over 20 years of experience delivering industrial monitoring solutions, ProDetec provides water turbidity sensor solutions that combine proven global technology with local support, gas monitor calibration, gas leak detection, and integration expertise. Our range includes fixed and portable systems suitable for continuous or spot measurement, ensuring that operators have actionable data when and where it’s needed.

image1 (2)
Blue decorative line graphic used in ProDetec branding

Turbidity For Water Quality Monitoring Systems

AquaScat S | In-Line Turbidity Sensor

AquaScat S | In-Line Turbidity Sensor

In-line turbidity measurement for water treatment

The AquaScat measures the turbidity of potable water according to IEC 27027 and the temperature, with the measurement carried out directly in the water. This reduces maintenance work to a minimum and has zero water loss. There is also a retractable option which allows the AquaScat S to be withdrawn for CIP and maintenance.

Calibration is done with a checking unit that has no consumables which enable the operator to return the instrument calibration to factory calibration, increasing operational efficiency whilst maintaining flexibility non real world applications.

Read more
AquaScat 2 WTM | True non-contact turbidity meter (ISO 7027)

AquaScat 2 WTM | True non-contact turbidity meter (ISO 7027)

The AquaScat measures turbidity of potable, recycled and  raw water according to IEC 27027 using 90° scattered light detection in a non-contact, free-falling water stream. This contactless design eliminates window fouling and eliminates the need for regular maintenance, reducing downtime and labour costs.

Calibration is performed either automatically (AquaScat WTM A version) or manually (AquaScat WTM / HT) with a calibration checking unit specific to that instrument.

With a range of 0-4,000NTU, the AquaScat WTM is sensitive enough to be used for post-filtration potable water to a heavy rain event raw water. There are 8 pre-set 4-20mA measuring ranges in the AquaScat WTM, but any of these can be easily modified to suit your specific purpose (see the AquaScat video on setting your own measuring range).

Read more
Blue decorative line graphic used in ProDetec branding

Turbidity For Beverage Quality Monitoring Systems

TurBiScat PM 40

TurBiScat PM 40

The TurBiScat PM 40 measures turbidity in beverages, optional also colour in beer; MEBAK / EBC / ASBC conform. The TurBiScat thus additionally becomes an inline colour meter. The combination of Hastelloy and Sapphire in a sealless design allows use in virtually all processes applications. The TurBiScat PM 40 determines turbidity with optimum colour compensation using scattered light measurement and is MEBAK/EBC compliant. 

The TurBiScat PM 40 appears in a new, fresh design with integrated coloured touchscreen display. The remarkable TurBiScat PM 40 can be identified easily in the production line. Measurement values and curves as well as data status are shown directly on point of measurement. Checking unit is integrated as well, no additional device is required. This simplifies the installation and reduces the power consumption. 

Read more
LabScat 2

LabScat 2

The LabScat monitors turbidity in liquids. Depending on your application, we can offer 90°/25° scattered light measurement with the option of Colour at a 430nm wavelength. The combination of Hastelloy and sapphire in a seal-less design allows operating the unit in practically all process applications. Turbidity measurement is done with colour compensation. Window fouling is monitored, compensated and can be checked using an anti-fouling control. Calibration is easy and very accurate with a precision optical calibration check cell, specific to each instrument.

Read more
TurbiGuard

TurbiGuard

The brewing, wine, sugar and beverage industries have the Sigrist TurbiGuard specifically designed for monitoring medium to high turbidity, in hygienic process liquids. The TurbiGuard measures turbidity using the absorption method and is typically mounted inline using a Varivent connection. The focus of the TurbiGuard is for easy installation and extremely low maintenance. There are no seals to replace and the calibration only requires a zero setting.

Read more
Blue decorative line graphic used in ProDetec branding

What Is a Turbidity Sensor?

A turbidity sensor is a device that measures the cloudiness or haziness of a liquid caused by suspended solids. In water systems, high turbidity can indicate contamination, process inefficiency, or the presence of microorganisms.

Turbidity sensors are essential in a wide range of industries, including:

  • Municipal and industrial water treatment
  • Wastewater and sewage treatment
  • Food and beverage processing
  • Mining and mineral processing
  • Environmental monitoring and research

These devices provide real-time data, helping operators make critical decisions to maintain water quality and meet regulatory standards.

gas-detection-header
Blue decorative line graphic used in ProDetec branding

How Turbidity Sensors Work

Turbidity sensors operate by emitting light into a water sample and measuring how particles scatter or absorb that light. The intensity of scattered light correlates with the concentration of suspended solids, allowing the sensor to quantify water clarity.

Key features of turbidity monitors include:

  • Continuous optical monitoring for real-time turbidity measurement
  • Measurement expressed in turbidity measurement units (NTU) for standardised reporting
  • Built-in diagnostics to detect fouling, drift, or sensor misalignment
  • Integration with control systems to trigger alarms or corrective actions when turbidity thresholds are exceeded

Advanced turbidity metres often include temperature compensation, multi-path optical designs, and self-cleaning mechanisms to minimise maintenance and achieve high accuracy.

AquaScat Turbidity Analyser
Blue decorative line graphic used in ProDetec branding

Types of Turbidity Sensors

ProDetec supplies a wide range of turbidity sensors suitable for diverse industrial applications:

Fixed Turbidity Sensors

Designed for permanent installation in process streams, fixed turbidity sensors provide continuous monitoring and integrate seamlessly with SCADA or plant control systems. These systems are ideal for:

  • Continuous process control
  • Regulatory compliance reporting
  • Water treatment plant inlet and outlet monitoring

Portable Turbidity Sensors

Portable turbidity monitors allow spot checks, troubleshooting, and validation of fixed systems. These are ideal for:

  • Field inspections
  • Mobile process monitoring
  • Sampling in remote or inaccessible locations

In-Line Turbidity Sensors

In-line sensors are installed directly into pipelines or channels, providing real-time turbidity data without requiring sample extraction. They are commonly used in industrial water systems, cooling towers, and wastewater pipelines.

Environmental & Remote Monitoring Sensors

For environmental monitoring applications, robust water turbidity sensors with telemetry capabilities provide real-time data from lakes, rivers, or stormwater systems, supporting compliance with environmental regulations.

Blue decorative line graphic used in ProDetec branding

Sigrist AquaScat Turbidity Metres Supplied by ProDetec

ProDetec supplies a proven range of Sigrist AquaScat turbidity metres, engineered for high-precision, low-maintenance turbidity measurement across industrial, municipal, and environmental applications.

The AquaScat S is a versatile solution for potable and process water monitoring, offering flexible installation and reliable continuous measurement. For high-solids and demanding environments, the AquaScat 2 HT delivers stable, accurate turbidity readings across a wide NTU range, even in challenging process conditions.

The AquaScat 2 WTM and AquaScat 2 WTM A are internationally recognised online turbidimeters using a non-contact free-fall measurement method to minimise fouling, with the WTM A model featuring automatic calibration for unattended operation.

Together, these Sigrist turbidity metres provide dependable, compliant turbidity measurement tailored to a wide range of Australian water monitoring applications.

Blue decorative line graphic used in ProDetec branding

Choosing the Right Turbidity Sensor

Selecting the correct turbidity sensor depends on multiple factors:

  • Measurement Range: Low-NTU measurement for ultra-pure water vs high-NTU capability for industrial wastewater
  • Environment: Corrosive, abrasive, or high-pressure conditions may require specialised materials
  • Installation Type: Fixed, in-line, or portable sensors based on operational needs
  • Integration Needs: SCADA or PLC integration for real-time process control
  • Maintenance & Calibration: Access to cleaning, calibration, and diagnostics to maintain turbidity measurement unit accuracy

ProDetec’s engineering team works with customers to specify the optimal sensor or turbidity monitor for their unique application, ensuring both reliability and compliance.

FDS301 Intelligent Visual Flame Detector
Blue decorative line graphic used in ProDetec branding

Turbidity Sensor Comparison: Choose the Right Monitor for Your Application

Turbidity Sensor Type Strengths Limitations Typical Applications
Fixed Turbidity Sensor Continuous monitoring, high accuracy, real-time integration with SCADA/PLC Permanent installation required, higher initial cost Water treatment plants, industrial process lines, wastewater effluent monitoring
Portable Turbidity Monitor Flexible, spot-check measurement, easy calibration Not suitable for continuous monitoring, operator-dependent Field sampling, remote site inspections, validation of fixed sensors
In-Line Turbidity Sensor Real-time measurement without sample extraction, minimal contamination risk Requires pipe/channel integration, limited retrofitting Pipelines, process water lines, slurry transport
Environmental / Remote Turbidity Sensor Telemetry-enabled, robust for outdoor conditions, suitable for regulatory reporting Initial setup may be complex, power and network dependent Rivers, lakes, stormwater, environmental compliance monitoring
Blue decorative line graphic used in ProDetec branding

Leading Turbidity Measurement with Sigrist Instruments

ProDetec is the exclusive distributor of SIGRIST PHOTOMETER AG products within Australia and New Zealand – a Swiss optical measurement technology leader with over 75 years of innovation in real-time water quality monitoring. Sigrist instruments are designed for exceptional reliability, precision, and low maintenance, making them ideal for applications where accurate turbidity measurement is critical to process control and compliance.

AquaScat S

A versatile turbidity metre engineered for potable and process water monitoring, the AquaScat S features multiple installation options including immersion tubes and inline ports. Its robust optical design and easy integration with control systems make it ideal for treatment plants, industrial effluent monitoring, and processes that demand continuous clarity measurement.

AquaScat 2 HT

Designed for high-turbidity environments, the AquaScat 2 HT combines advanced non-contact light scattering measurement with enhanced optical stability. It maintains precise turbidity data even in challenging conditions where solids and sediments are present, delivering reliable turbidity measurement units across the 0-4000 NTU range.

AquaScat 2 WTM & AquaScat 2 WTM A

These internationally recognised online turbidimeters use a non-contact free-fall measurement method, avoiding optical fouling and minimising maintenance needs. The AquaScat 2 WTM A includes automatic calibration with a solid optical reference, enabling unattended operation and simplified calibration checks without shutting down the system.

Across all models, Sigrist turbidity metres are built to IEC 7027/ISO 7027 standards using 90° scattered light detection in a free-fall stream, ensuring high resolution (as precise as 0.001 NTU) and stable long-term data for operators.

Blue decorative line graphic used in ProDetec branding

Why Sigrist Adds Value to Your Water Monitoring Strategy

  • True non-contact optical measurement eliminates fouling and maximises uptime.
  • Virtually zero routine servicing compared to traditional immersion or wiper-based sensors.
  • Flexible installation options for pipes, in-stream immersion, or tank inserts.
  • Automatic and manual calibration models to suit different site needs and maintenance capabilities.
  • Data logging and control integration ready for modern SCADA or plant systems.

Sigrist turbidity measurement technology enhances traditional turbidity metre capabilities by delivering reliable, repeatable turbidity readings with minimal downtime.

Blue decorative line graphic used in ProDetec branding

Australian Standards & Compliance

ProDetec ensures that all turbidity sensors and turbidity metres meet Australian regulatory requirements and international best-practice standards.

Key compliance considerations include:

  • AS/NZS ISO 7027 – Measurement of water turbidity using optical methods
  • SafeWork Australia – Safe installation and operation of sensors in hazardous areas
  • Industry-specific water quality standards and reporting obligations

Proper calibration, installation, and maintenance are critical to ensure compliance and reliable data. ProDetec supports fixed gas detector and turbidity system integration, as well as portable gas detector-style maintenance programs, to ensure sensors maintain accuracy and traceability over time.

Blue decorative line graphic used in ProDetec branding

Industrial Applications in Australia

null

Water Treatment & Municipal Systems

Maintaining low turbidity in drinking water is essential for public health. ProDetec supplies turbidity metres that provide continuous monitoring at raw water inlets, clarifiers, and post-filtration stages.

null

Mining & Resource Processing

Sediment and slurry transport require careful turbidity monitoring to optimise operations and comply with environmental management plans. ProDetec offers robust water turbidity sensor solutions that perform reliably in abrasive and remote conditions.

null

Food & Beverage Production

Food and beverage processing requires precise turbidity control to ensure product quality. Turbidity sensors integrated into pipelines allow automated process adjustments to maintain clarity and consistency.

null

Wastewater & Industrial Effluent

High wastewater turbidity can indicate process issues, insufficient sedimentation, or regulatory noncompliance. Turbidity monitors provide real-time alerts to prevent environmental discharge breaches.

Blue decorative line graphic used in ProDetec branding

Why Turbidity Measurement Matters

Accurate turbidity measurement units enable operators to:

  • Identify contamination before it becomes a larger issue
  • Optimise chemical dosing in water treatment
  • Meet regulatory reporting and environmental obligations
  • Reduce operational downtime and avoid costly process disruptions

ProDetec combines reliable turbidity sensors with expert technical support, ensuring operators have confidence in both the readings and the system’s performance.

OLCT100 Gas Detector | Toxic and Combustible Gas Detector

Protect Your Water Systems With Confidence

ProDetec delivers turbidity sensors, turbidity monitors, and turbidity metres designed for industrial and environmental applications across Australia. From fixed, in-line systems to portable units, we provide engineered solutions with expert local support, ensuring your water systems remain compliant, efficient, and reliable.

Contact ProDetec today to discuss your water monitoring needs and find the right turbidity sensor for your application.

FAQs

What is the difference between turbidity and TDS?

Turbidity measures suspended particles in water, while TDS (Total Dissolved Solids) measures dissolved salts and minerals. Turbidity sensors are specifically for particulate clarity.

How accurate are turbidity sensors?

Accuracy varies by technology and calibration. ProDetec sensors achieve precise measurement with continuous diagnostics to ensure reliability.

How long do turbidity sensors last?

With proper installation, cleaning, and calibration, water turbidity sensors can operate reliably for years. Environmental conditions and maintenance schedules impact longevity.

What affects turbidity sensor readings?

Factors include: particle type and size, temperature, flow conditions, fouling, and light interference. ProDetec sensors include diagnostic features to mitigate false readings.

Can turbidity sensors measure TSS (Total Suspended Solids)?

Turbidity correlates with TSS, but direct measurement may require calibration with gravimetric analysis. ProDetec provides guidance for accurate TSS estimation using turbidity data.

Get In Touch

TurBiScat PM 40

TurBiScat PM 40

The TurBiScat PM 40 measures turbidity in beverages, optional also colour in beer; MEBAK / EBC / ASBC conform. The TurBiScat thus additionally becomes an inline colour meter. The combination of Hastelloy and Sapphire in a sealless design allows use in virtually all processes applications. The TurBiScat PM 40 determines turbidity with optimum colour compensation using scattered light measurement and is MEBAK/EBC compliant. 

The TurBiScat PM 40 appears in a new, fresh design with integrated coloured touchscreen display. The remarkable TurBiScat PM 40 can be identified easily in the production line. Measurement values and curves as well as data status are shown directly on point of measurement. Checking unit is integrated as well, no additional device is required. This simplifies the installation and reduces the power consumption. 

Read more
LabScat 2

LabScat 2

The LabScat monitors turbidity in liquids. Depending on your application, we can offer 90°/25° scattered light measurement with the option of Colour at a 430nm wavelength. The combination of Hastelloy and sapphire in a seal-less design allows operating the unit in practically all process applications. Turbidity measurement is done with colour compensation. Window fouling is monitored, compensated and can be checked using an anti-fouling control. Calibration is easy and very accurate with a precision optical calibration check cell, specific to each instrument.

Read more
TurbiGuard

TurbiGuard

The brewing, wine, sugar and beverage industries have the Sigrist TurbiGuard specifically designed for monitoring medium to high turbidity, in hygienic process liquids. The TurbiGuard measures turbidity using the absorption method and is typically mounted inline using a Varivent connection. The focus of the TurbiGuard is for easy installation and extremely low maintenance. There are no seals to replace and the calibration only requires a zero setting.

Read more

Protect Your Water Systems With Confidence