In modern industrial and environmental applications, precise measurements determine efficiency, safety, and water quality.
UNION Sensors develops and produces high-performance measurement probes for water analysis, specifically designed for use in marine and limnic environments. Our probes deliver stable, robust, high-resolution measurement data – even under extreme conditions such as saltwater, high pressure, currents, or highly fluctuating water chemistry.

With decades of experience in industrial measurement technology and a clear focus on innovation, UNION Sensors is setting new standards in probe technology. Our water probes combine mechanical robustness, maximum measuring accuracy and intelligent signal processing to deliver reliable and reproducible results even in dynamic waters.

In the maritime sector, our probes are used in coastal waters, offshore plants, research platforms and in shipping, among other applications. They record important parameters such as temperature, conductivity, oxygen, turbidity or nutrients and provide reliable data for environmental monitoring, process control and maritime research.

In the limnic sector – for example in lakes, rivers, dams, aquaculture or drinking water reservoirs – our probes enable continuous monitoring of water quality, ecological assessment and sustainable resource management.

Our Mission: Sensor Technology. Redefined.
We are reinventing water probes – smarter, more durable, and field-tested. On this page, you will find an overview of our probes, their application areas, and the technological advantages that make UNION Sensors one of the leading providers of marine and limnic measurement technology.