Abstract: A sensor system for monitoring a device, the sensor system including a housing, a base configured to attach the sensor system to the device to be monitored, a sensor configured to obtain data related to at least one operating parameter of the device, and an integral energy harvesting device configured to provide at least a portion of the energy required to operate the sensor system.

Abstract: A composition for a shaft end closure that includes a first component that can be a plastic material and at least one, or both, of a second component and a third component, the second and third components being different than the first material. The second and third components can enhance the detection of the composition and/or of the shaft end closure by different types of electronic detection devices. The second component can comprise a ferrous and/or non-ferrous metal material, including, for example, a plurality of metal flakes that are detectable by metal detection devices. The third component can be a compound, including, for example, barium, that is detectable by X-ray devices. The second and third components can comprise from about 1% to about 20% by weight of the composition.