Technology for Environmental Protection - Measuring. Controlling. Monitoring.
New level switch SonarFox USG 20
Revolutionary innovation in the area of level switches


The German measuring and control specialist AFRISO has launched a revolutionary innovation in the area of level switches. The measuring principle of the level switch uses is based on ultrasonic technology, a technology so far primarily used in costly, high-end medical equipment. The level switch allows for non-invasive measurements from the outside through the walls of plastic tanks or pipes which breaks new ground in process engineering applications.



The new AFRISO USG 20 ultrasonic level switch allows for non-invasive measurements from the outside through the walls of plastic tanks or pipes.
The new AFRISO SonarFox USG 20 ultrasonic level switch is designed for detecting limit levels and monitoring liquids in tanks or pipes with a maximum dynamic viscosity of 10,000 mPa • s. SonarFox USG 20 is ideal for applications in which vibration level switches cannot be used due to the interfering contour "vibration fork". USG 20 offers decisive benefits. Since the device is flush with the inside wall of the tank or the pipe, it has no interfering contours and is predestined for use in pipes with small cross sections, for example as overflow protection or dry run protection. The measuring instrument is also used in hygienic processes: as opposed to vibration level switches, USG 20 is piggable so that it can be used as a measuring point in systems with CIP or SIP. The measuring instrument also allows for non-invasive measurements from the outside through plastic tanks or plastic pipe walls. USG 20 is available with a wide range of process connections (G1/2, G3/4, G1, Tri-Clamp, dairy fitting, VARIVENT, weld-in socket, etc.). Compatible mechanical and electrical connections enable easy retrofitting and replacement of vibration level switches with vibration forks.