Meet the Monitoring Buoy

A powerful combination of real-time water quality monitoring and user-friendly cloud software.

  • 24/7 access to water data
  • Minimal maintenance
  • Upgradable with ultrasound treatment

How it works

Monitor water quality

The Monitoring Buoy offers 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
Extra parameters and vertical profiling available upon request

Predict algal blooms

The algorithm developed in cooperation with research institutes allows you to predict algal blooms 3-10 days in advance. Plus, you gain other valuable insights:

  • Seasonal alage trends
  • Predict algae counts
  • Set custom alerts
  • View data in charts, tables, and spreadsheets on your personal webpage
  • Applications
  • Installation
  • Maintenance

Applied across industries

Cost-effective water quality monitoring and early warning system for algal blooms. Suitable for:

  • Raw/industrial/irrigation reservoirs
  • Lakes
  • Dams
  • Cooling ponds and towers
  • Aquaculture ponds
  • Wastewater treatment plants
  • Power plants
  • Settling ponds
  • Crystal- and wastewater lagoons

Fast & easy deployment

The buoy can be assembled on-shore within 2-4 hours and requires minimal manpower. Can be dragged by boat and easily anchored in the desired location due to GPS integration.

installation by boat of a water monitoring buoy

Minimal maintenance

Our water quality sensors are equipped with an automatic cleaning system. This requires minimal effort on your part, and guarantees accurate sensor readings.

maintenance datalogger calibration monitoring buoy

Perfected water quality monitoring



Algae & water quality data sets a day per buoy



More cost-efficient



Industries served

  • Durable design
  • Remote operation
  • Safe maintenance

Resistant to extreme weather conditions

  • Durable, stormproof design
  • Resistant to extreme heat, cold temperatures, even at high altitudes or in desert conditions
  • No need to take the buoy out during wintertime

Remotely operated by us

  • Our dedicated Customer Support keeps an eye on your water quality data. The team acts as an alarm system. You’ll be notified in case of possible harmful events.
Remote operation

Safe and convenient maintenance

  • Maintenance needed every quarter
  • No need to bring the buoy back to shore. All components are reachable by boat, ensuring the safety of your staff
  • Automatic cleaning system guarantees accurate readings, reducing maintenance time, costs, and labor.

System components

Smart communication system

  • 4G, Satellite, LAN
  • Real-time water quality data with the MPC-View software
  • Integrated alarm functions


  • 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

[Optional] 4 ultrasonic transmitters

  • Can be upgraded with ultrasound treatment
  • Treatment range: 800m/2600ft in diameter
  • Integrated Aquawiper™: automatic cleansing system for the transmitters
  • Chameleon Technology™ adjusts the ultrasonic program to specific water conditions

Anchored floating buoy construction

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

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


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


200kg (excl. anchor)

water monitoring buoy


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


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

Water quality sensors

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

View your water quality data anytime

Once you purchase the Monitoring Buoy, you get access to the MPC-View, our online water quality monitoring software. Designed to be user-friendly. Provides a complete picture of your water body at every monitored location.

With the MPC-View, you gain valuable real-time insights into water quality, algae growth trends, and treatment progress. You can create specific rules that will trigger an email alert when pre-determined parameters are breached.


Join 100+ clients Trusting LG Sonic

Read full case study
Irish Water
American Water
Seven years ago, American Water was the first customer to believe in LG Sonic’s technology. We’re proud of our ongoing, strong partnership.
Anglian Water
Anglian Water reduced up to 95% of algae counts with ultrasonic treatment. The Alton WTW supplies water to 92,214 properties in the Suffolk area, U.K.
Saeta Yield
Saeta Yield is a power generation plant in western Spain. Their raw water pond contained excessive algae, causing pipes, filters, and pumps to clog.
City of Minneapolis
WTDS’ greatest concern was that algae would clog membranes in the filtration plant. LG Sonic became an integral part of the treatment process.
World Waternet
Algae were degrading the water quality in a water source for 1.3 million citizens. The company achieved 50% algae reduction within 2 months.
Luxor Water Company
South West Water
South West Water was one the first utilities in the UK to install the MPC-Buoy in their water treatment process back in 2014.
With the help of MPC-Buoy technology, EPM could control algal blooms even in extreme environmental conditions caused by “El Niño’’ in 2015-2016.
Since using the MPC-Buoy, NIPSCO’s TSS levels never exceeded monthly average for compliance. This year, they won the Power Mag Water Award.
City of Archie
CAASD’s Valdesia reservoir has a surface of 7km²/1700 acres. After years of algae bloom contamination, the utility achieved 87% chlorophyll a reduction.
Vallecitos Water District
Vallecitos Water District significantly improved TSS, pH, and DO levels. Vallecitos can now provide even higher quality water to their customers.
Three Rivers
A popular public open space with 2 lakes used for water skiing, fishing and sailing was contaminated with algae blooms.
American Crystal Sugar
American Crystal Sugar Company is the first company in the sugar beets industry to start using ultrasound technology to improve water quality.
Auckland Utility
NZ utility needed to reduce blue-green algae in a dam used for water supply. During summer, algae cause damage and increase the process costs.
Dubai Municipality
Dubai Municipality selected MPC-Buoy systems to control algae blooms because it's chemical-free and offers real-time water quality monitoring.
Town of Emmitsburg
The main objective was reducing algae during summer, as well as reducing chemicals costs, decreasing backwashes, and preventing clogged filters.
Town of Superior
Town of Superior was named after the "superior" quality of coal found in the area. The town’s raw water supply delivers water to approximately 12,483 citizens.
To improve water visibility in Sellafield's storage ponds, 4 LG Sonic systems were installed. These systems have 12 ultrasonic programs that control algae.
Many lakes in Poland generally suffer from cyanobacterial blooms during summer. The algae issue was mitigated with the help of LG Sonic systems.
Salto Grande
Salto Grande: “In open water systems, LG Sonic raises one of the best responses within the existing technologies, sustainable over time.”


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