Abstract: A demarcation enclosure housing (10) is provided for housing electronics (18) on a structure. The enclosure housing (10) includes an enclosure frame (14) having access to an interior side of the structure and access to an exterior side of the structure. The frame, on the exterior side, includes a door (12) connected thereto. The frame can include a vent (40, 42) adapted to allow ambient air from the interior side of the structure to flow through the housing.

Abstract: A guy marker apparatus for use on an associated guy wire includes a substantial rectangular body member having opposite parallel first and second edges and is foldable along a longitudinal axis parallel with the first and second edges. First and second connection portions are disposed at the first and second edges, respectively, for selectively interlocking the edges in slidable abutment to hold the main body member in a folded tubular conformation and selectively in a helical conformation. A tool for applying a guy marker apparatus onto an associated guy wire includes a main body member, an alignment portion adapted to guide the guy marker in an unlocked state relative to the main body member, and a production portion adapted to guide the marker in a self-locked state out from the main body member. A forming wall disposed between the alignment and production portions moves. the marker material between the unlocked and self-locked state based on relative movement between the tool and the guy marker material.