Monitoring Buoy

Real-time water quality monitoring

LG Sonic Monitoring Buoy is a powerful combination of real-time water quality monitoring and user-friendly cloud software that stores, and analyses received water quality data.

  • Online access to real-time water quality data
  • Operates autonomous with minimal maintenance
  • Easily upgradable to LG Sonic ultrasound algae treatment
Monitoring Buoy

How it works


1. Monitor

Monitoring Buoy provides a complete overview of the water quality by collecting the following parameters every 10 minutes: Chlorophyll α (green algae) Phycocyanin (blue-green algae) pH Turbidity Dissolved Oxygen Temperature Additional sensors sets can be implemented.


2. User friendly software

The collected data is delivered in real-time via 3G/4G to the user friendly web-based software MPC-View. The software allows you to set up specific automatic alarms to inform about changing algae and/or water parameters, or maintenance activities.


3. Predict algal blooms

The algorithm developed in cooperation with research institutes allows you to predict algal blooms 3-10 days in advance.


  • Overview

  • Maintenance

  • Power consumption


Monitoring solution

The system represents a cost-effective monitoring solution and an early warning system  for algal blooms in lakes and water reservoirs.

  • Drinking water reservoirs
  • Cooling reservoirs
  • Lakes
  • Wastewater lagoons
  • Irrigation reservoirs


Installation and maintenance

The system is easily deployable and anchored in the lake or reservoir. It uses solar panels to provide power, all year round in any country.

Our water quality sensors are equipped with a wiper mechanism for automatic cleaning of the sensors after each reading, keeping the maintenance to a minimum and the readings accurate.


Power consumption

Low power

LG Sonic Monitoring Buoy makes use of low power (5-20 Watts). The system is self-supporting of power by using solar energy with 3x Rated Power (Pmax): 200Wp solar panels mounted.


Technical specifications


2188mm (l) x 2540mm (w) 860mm (h)

Top view MPC-Buoy


200kg (excl. anchor)

Front view


  • Polyethylene buoy
  • Anodized aluminum
  • Closed-cell polyurethane foam
  • Buoyancy capacity 285 kg
  • PV module: 3x 200Wp solar panels
  • 40Ah battery
Data transmission


  • 3G/4G
  • Iridium Satellite (optional)
  • GPS (optional)
  • 1 x RS485 port
  • 1 SDI-12 input
  • 3X RS232
Water quality sensors

Water quality sensor package

  • Chlorophyll a
  • Phycocyanin
  • Turbidity
  • pH
  • Dissolved Oxygen
  • Temperature
  • It is possible to add additional sensors to the water quality sensor package.

System components

Monitoring Buoy
  • 1

    Smart communication system

    • GSM/GPRS Telemetry Quadband (CDMA, Radio, GPS and Iridium Satellite optional)
    • Real-time water quality data with the MPC-View software
    • Integrated alarm functions
  • 2

    Solar powered

    • 3x 200 Wp high quality solar panels that provide power, all year-round in any country
    • 1x 24 Volt, 40 AMP lithium battery
    • Switches to energy-saving program during periods of low sun irradiation
  • 3

    Complete sensor package

    • In-situ water quality sensors to provide real-time data
    • Monitors DO, turbidity, pH, chlorophyll α, phycocyanin, redox, and temperature
    • Automatic antifouling wiper ensures optimal readings
  • 4

    Anchored floating buoy construction

    • Aluminium powder coated frame
    • UV and corrosion resistant construction
    • Unsinkable floats

MPC-View Water quality monitoring software


MPC-View is an advanced web-based water quality monitoring software. The software allows to generate a complete overview of the water quality of one or multiple water bodies.

  • Web-based software
  • User friendly

Visual insights

The software provides insights into the water quality, algae trends, and progress of the ultrasonic treatment in the lake or reservoir.


Users can log in to the software, where they can find a personal dashboard with an overview of the water quality and MPC-Buoy system status.

Real-time alarms

The software allows users to set up specific alarms to inform about changing parameters. Users receive an e-mail notification when the alarm goes off.


Case studies

Dominican Republic case study
87% algae reduction to improve drinking water

The country’s most important water source After years of struggle with algal blooms, The Santo Domingo Water and Sewage Corporation (CAASD) installed multiple MPC-Buoy systems to cover the 7km²/2.7mi² Valdesia reservoir. The first results were visible after two weeks, and the project exceeded the targets for the first year with a 87% reduction in algae levels. The Valdesia reservoir is the main drinking water supply for the population of the…

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Three Rivers case study
Three Rivers
Lakes remain open during algae season

Control Cyanobacteria concentration Four solar-powered algae control systems were installed in the Aquadrome in Rickmansworth (UK) to control the cyanobacteria concentration in two lakes. Two systems were installed in a lake used for water skiing and fishing, and two additional unites were installed in June 2017 in a lake used for sailing. To ensure that the concentration of cyanobacteria remained at an acceptable level at a popular public open space…

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New Zealand case
Auckland utility
Reduced blue-green algae counts in New Zealand

Reducing blue-green algae counts In the Lower Nihotupu Dam in Auckland, New Zealand, five solar-powered algae control systems are controlling blue-green algae blooms. The project started in December 2016 and it proved to be a great success. The algae counts have significantly decreased over the summer, as compared to the previous year. The water utility’s main objective was to reduce blue-green algae counts in a dam used as a water…

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