A wearable locating andor recovery assembly having a body containing a portable battery, an onoff switch communicating the battery with a processor control, and at least one additional switch for actuating, selectively or in combination, at least one overt light and at least one infrared light arranged at discrete locations upon the body. The engine provides power to SG to generate poly-phase alternating current; it also drives the wheels directly when the clutch is engaged. The members are stacked and housed in a housing unit. The helium gas prevents the reaction product from adhering to the surface of the wafer again.