The Model VHS vibrating rod is a point level sensor for detecting the presence and absence of dry and free-flowing powder and granular bulk solid materials with density from 3.12lbs/cubic-foot and above. This vibrating element sensor uses a single rod design with piezoelectric technology. The unit does not require calibration, has a universal AC/DC power supply and a SPDT relay output that is fail-safe and power failure. Versions of the Model VHS vibrating rod point level sensor include the standard rod and pipe extended length rod. The process connection is 1.5" NPT and probe construction is all 316SS.