LiquiSonic consists of one or more sensors and a controller. The contactless measuring method is based on the sonic velocity measurement for a precise and fast data acquisition. The sensor is made of stainless steel, but can be coated with Halar, PFA or Tantalum to handle aggressive liquids. The completely enclosed design of the sensor eliminates the need for gaskets or “windows” to the process, and therefore works maintenance-free. The sensor is available with an Ex approval for using in hazardous areas. Up to four sensors can be connected to one controller. — SensoTech GmbH, Magdeburg-Barleben, Germany