Abstract: An encapsulated magnet position switch includes a non-magnetic tubular body including a first end wall closing a first end of the tubular body and an oppositely positioned second end wall closing a second end of the tubular body. Multiple equally angularly spaced non-magnetic guide rails are connected to an inner wall of the tubular body between the first end wall and the second end wall. A spherical shaped magnetic ball is positioned within the tubular body and is retained between the first end wall and the second end wall. The magnetic ball is longitudinally guided by the multiple guide rails coaxial to a longitudinal axis of the tubular body. Multiple sensors are positioned along the tubular body and are connected to a Hall effect switch, the sensors sensing and signaling a longitudinal position of the magnetic ball within the tubular body.

Abstract: An encapsulated magnet position switch includes a non-magnetic tubular body including a first end wall closing a first end of the tubular body and an oppositely positioned second end wall closing a second end of the tubular body. Multiple equally angularly spaced non-magnetic guide rails are connected to an inner wall of the tubular body between the first end wall and the second end wall. A spherical shaped magnetic ball is positioned within the tubular body and is retained between the first end wall and the second end wall. The magnetic ball is longitudinally guided by the multiple guide rails coaxial to a longitudinal axis of the tubular body. Multiple sensors are positioned along the tubular body and are connected to a Hall effect switch, the sensors sensing and signaling a longitudinal position of the magnetic ball within the tubular body.

Abstract: A sectional tarp comprising, generally flat flexible tarp sections having a centerline therein extending from its outer periphery inward to accommodate placement of a center gap about a landscape, the tarp sections are capable of being removably attached to each other, wherein the centerline is capable of opening and closing; and a center cap centrally located on the sectional tarp, wherein the center cap is capable of being removable attached from the tarp sections.