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Aqua TROLL 800 Multiparameter Water Quality Sonde

Monitor parameters simultaneously with this multiparameter sonde, equipped with internal logging capabilities for long-term continuous water quality monitoring.

Full product information
Have a question?

Contact our expert David Claridge for more information.

Have a question?

Contact our expert David Claridge for more information.

Product Information


  • Reduce your operational costs with this seven-port multiparameter sonde that has capacity for six interchangeable water quality sensors
  • Internal logging capabilities and integration with telemetry give you real-time data
  • View and download data from your remote sites at your convenience
  • Low-maintenance deployment with passive and active antifouling and long battery life

Purchase Options

  • Hire
  • Buy


Aqua TROLL 800 Overview  

The In-Situ Aqua TROLL 800 is ideal for fulfilling your Environment Act regulatory requirements and may help to reduce your operational expenses. It is a seven-port multiparameter sonde which has capacity for six interchangeable sensors and an antifouling wiper. This customisable and powerful water quality sonde works for short-term or long-term deployments in fresh or saltwater, surface water or groundwater. The Aqua TROLL 800 stands out as an exceptionally versatile piece of equipment. 

Durable in groundwater and resistant to corrosion in surface water, the Aqua TROLL 800 delivers accurate and consistent data in an easy-to-use, flexible instrument – saving you money.    

The water quality sonde integrates with In-Situ telemetry systems and HydroVu Data Services for real-time feedback from remote monitoring sites.   

The Aqua TROLL 800 water quality sonde is equipped with long-lasting battery and a smartphone interface which enables simplified calibration, live time-series data view and report creation. The low power consumption and advanced antifouling will support long-term installation in any application.   

Engineered for accuracy and reliability, the Aqua TROLL 800 has fast-response sensors and a built-in error prevention system. The Aqua TROLL 800 has internal logging capabilities and uses two alkaline D batteries for continuous deployment without external power.  

Designed for versatility  

Crafted with titanium components and the choice of vented or non-vented pressure sensor options, the Aqua TROLL 800 is well-suited for challenging environments and long-term deployments in fresh water or salt water, surface water or ground water.

Efficiency in the field   

User-friendly software simplifies instrument configuration, data analysis, and reporting. No specialised training is required, and no waiting for sensor warm-up or set-up.

Simplified data management  

Equipped with internal logging capabilities, the Aqua TROLL 800 enables easy data management in the field through the VuSitu Mobile App. You can easily set up logs and consolidate site information on your mobile device, tagging sites with photos and GPS coordinates.  

Instant status updates  

The LCD display provides immediate visual feedback on sensor status, data log, battery life, and overall functionality. This will give you confidence during deployment. An onboard SD card enables quick and easy data backup and transfer.  

No fuss antifouling  

Active antifouling system with cleanable conductivity protects sensors.

Data accuracy 

Self-compensating turbidity/RDO/level, smart diagnostics, and stable sensor technology work together to minimise drift and enhance accuracy. NIST-traceable factory calibration reports provide assurance of reliability, and smart sensors store information internally, maintaining data and calibration within the sensor for traceable results. 

Water Quality and the Environment Act   

Since the introduction of the Environment Act 2021, there is more pressure than ever on water companies to be fulfilling water quality monitoring requirements and to be aware of their environmental impacts. To fulfil your regulatory requirements, you need the right equipment.  

Sensor options  

Sensor options for the Aqua TROLL 800 include:  

  • Temperature  
  • Conductivity  
  • PH/ORP  
  • Rugged Dissolved Oxygen (RDO)  
  • Turbidity  
  • Chlorophyll a  
  • Phycocyanin (BGA-PC)  
  • Phycoerythrin (BGA-PE) 
  • FDOM  
  • Crude Oil  
  • Rhodamine WT  
  • Fluorescein WT  
  • Ammonium (ISE)  
  • Chloride (ISE)  
  • Nitrate (ISE) 

Applications for Aqua TROLL 800 include:  

  • Continuous surface water monitoring 
  • Continuous groundwater monitoring 
  • Surface water HAB (harmful algal blooms) monitoring  
  • Profiling 
  • Source water monitoring 
  • Dredging monitoring 
  • Coastal monitoring 
  • Coastal HAB (harmful algal blooms) monitoring  
  • Combined Sewer Overflow (CSO) monitoring 

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Want to know more?

To discuss the Aqua TROLL 800 Multiparameter Water Quality Sonde and our other Water Quality Monitors and Sensors, please contact David Claridge our Business Development Manager (Water & Wastewater).

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