Vibration Limit Switch LVL-B2, Measuring method, Limit Detection, Limit switch for bulk solids, Device with tube extension, No calibration: easy commissioning (plug and play), Insensitive to build-up: maintenance-free operation, No mechanically moving parts: no wear, long operating life, Sensor material stainless steel: hardly any abrasion even with building materials, Insensitive to external vibration and flow noises