In modern industrial and environmental processes, precise measurements determine efficiency, safety, and quality. UNION Sensors GmbH develops and manufactures high-performance sensors specifically designed for demanding applications in maritime and limnic environments. Our sensor solutions deliver stable, robust, high-resolution measurement data—even under extreme conditions such as saltwater, high pressure, currents, or strongly fluctuating water chemistry.

With decades of experience in industrial measurement technology and a clear focus on innovation, UNION Sensors GmbH sets new standards in water and process sensor technology. Our technologies combine mechanical robustness, maximum precision, and intelligent signal processing to enable reliable measurements even in dynamic and challenging waters.

In the maritime sector, our sensors are used in coastal waters, offshore facilities, research platforms, and shipping, among other applications. They measure key parameters such as temperature, conductivity, oxygen, turbidity, and nutrients, providing essential data for environmental monitoring, process control, and maritime research.

In limnic environments—such as lakes, rivers, reservoirs, aquaculture facilities, or drinking-water reservoirs—our sensors support water-quality monitoring, ecological assessment, and resource management. They help detect changes early and protect water sustainably.

Our Mission: Sensor Technology. Redefined.

We are reinventing sensor technology – making it smarter, more powerful, and field-proven. On this page, you will find an overview of our sensor products, their applications, and the technological advantages that make UNION Sensors GmbH a leading provider in maritime and limnic measurement technology.