Overview

WAMO 220 is the compact measurement station for lakes, rivers and reservoirs: anchored where the readings are needed, it delivers data from day one – without a power connection and without civil-engineering works. Its largest deployment is running in the Mecklenburg lake district, where 21 stations measure continuously.

In live operation

What the stations deliver in continuous operation.

21Stations in MV
2024In operation since
99.7 %Availability, monthly average
60 minStandard measurement cycle
Short film

Self-sufficient, anchored, year-round.

One and a half minutes without narration. The film shows the WAMO on the water.

e.Ray Europa, June 2024The video is only loaded from YouTube when you click. Data is transmitted to Google in the process. Privacy
What the platform does

Six technical pillars.

100 % self-sufficient

Two solar modules and a battery on board, with the status of modules and battery retrievable at any time. No power connection, no cabling, no permit procedure.

Real-time monitoring

Hourly measurement cycles, data straight to SWIM. The first signs of an algal bloom are detected in hours – not weeks, as with grab samples.

Severe-weather capable

Floats on top – measures even during floods, where stationary gauges have long since failed. No measurement-height limit. Vandal-resistant by design.

Direct data transmission

The station communicates directly with the mobile device or the evaluation system, via Wi-Fi or GSM/LTE. Probes connect to the on-board bus via Modbus and SDI-12, and an 8 GB data logger keeps the measurement series available.

GNSS water-level measurement

Water-level derivation from Galileo and GPS distances – accurate to up to 2 cm, without pressure sensor or shore gauge. Pythagoras does the rest. Live demo on the WAMO overview.

Multi-depth measurement

Probe strings at multiple water depths capture thermal stratification and oxygen profiles – decisive for early eutrophication warning.

Sensors

What a WAMO 220 actually measures.

Multi-parameter sensing across four domains – water quality, hydrology, weather, bio-optics. Click a sensor to open the detail text.

WAMO 220 sensor platform, cut-out

Water quality

Hydrology

Weather

Bio-optics

In the water column

Where the probe actually hangs.

The probe string hangs centrally between the pontoons beneath the station and measures where the water body is alive – not at the surface. The probe sits in a protected mount, remains accessible from above for maintenance and calibration, and can be extended to cover several water depths.

Cross-section of the WAMO station: the solar roof above water, below it the measuring probe suspended on a cable in the water column
Above and below the water
Close-up of a measuring probe in its mount on the frame of the WAMO station
Probe in its mount
Technical data sheet

Specifications WAMO 220.

Excerpt from the current data sheet. Full spec table and configuration options on request.

Build Two side pontoons, flat solar roof, central probe string · 2.3 × 1.5 × 0.9 m · 90 kg
Solar / battery 2× PV solar module 110 Wp (220 Wp total), 3.8–24 V DC · 50 Ah battery · status of the modules (temperature, voltage, current) and of the battery retrievable
Probe compatibility Vendor-neutral – e.g. spectro::lyser or oxi::lyser by s::can, measurement probes from Endress+Hauser · expandable, e.g. vertical probe lift for multiple water depths · automated sensor cleaning
Standard parameters Temperature · oxygen · turbidity · colour · TOC · DOC · BOD · COD · nitrate (NO₃-N) · UV254 · chlorophyll-a · spectral fingerprints · water level via GNSS · further parameters depending on probe configuration
Communication Wi-Fi · GSM/LTE · Modbus and SDI-12 (on-board bus) · 8 GB data logger
Gauge accuracy up to ±2 cm via GNSS distance calculation (Galileo + GPS, RTK baseline to base station)
Measurement cycle Hourly by default · configurable from 5 min to 24 h
Data interface SWIM (default) · API export (REST/JSON) · GIS layer (GeoJSON, Shapefile, CSV)

Download data sheet

Reference Case

21 stations · two districts · one model project.

In the Smart City model project “meer.zukunft.seen”, WAMO 220 runs in 21 lakes across the Mecklenburg lake district and the Vorpommern-Greifswald district – from Tollensesee to Reitbahnsee. Each station continuously delivers water-quality and water-level data to the municipal control rooms.

More on the Mecklenburg project
Model family

Two stations, two deployment sites.

One family, two tasks. WAMO 220: compact station for surface waters. WAMO 600: vertical profiler for dam reservoirs, deep lakes and drinking-water reservoirs, to 100 m, with automatic sampling.

WAMO 600 and WAMO 220 as renderings side by side in a size comparison
Next step

A WAMO 220 for your water body.

We analyse your site, propose the right probe configuration and deliver a pilot station for one season – including SWIM connection.

Request demo Download data sheet