The Series VLS vibrating rod dry products level switch from Mobrey is the perfect solution for single point level switching in free flowing solids and dry products across a wide density range, from fine powders to grains. The self-cleaning Series VLS provides the solution in applications where tuning fork style switches may become blocked or bridged. The vibration rod is energised and kept in resonance by an electronic circuit. When covered by material the damping of the vibration will be detected by the electronics which initiate the switching of the output