With the ultrasonic sensor ASV UFM (photo), contact-free level sensing of liquids and dry bulk goods can now be quickly and easily integrated into site installations. The compact device continuously controls the filling level by means of an integrated ultrasonic sensor. Users can choose between a 4–20-mA current output feeding directly into a PLC, or a relay version with four user-programmable outputs. Other components, such as pumps, can therefore be operated either via a central PLC unit or directly by the integrated relay. The programming and display of the settings is done by means of an optional plug-in controller display unit, which can be used to set up several sensors by simply copying the controller units program pre-setting onto the various sensors. — ASV Stübbe GmbH & Co. KG, Vlotho, Germany