A wireless sensor is disclosed for monitoring the health and performance of vibratory screen systems. Systems and techniques disclosed herein generate power from the vibrations of a vibratory screen system, selectable switch between a plurality of power sources, and strategically control voltage input and power expenditures to prolong the life of a measuring module while avoiding power cables and battery replacements. Avoiding power cables and battery replacements provides measuring modules that perform well in the harsh environment of a vibratory screen system because power cable destruction is avoided and battery swapping caused operational shutdowns are circumvented.