A carabiner designed for use with strap or webbing is disclosed. The case is filled with thermally conductive potting material to provide thermal conduction from the printed circuit board to the case. The pocket comprises a mesh material preformed to a desired shape so that when the pocket is placed on a stick, the location of the deepest or bulbous portion will be at an optimal location and a channel may also be formed. The first output signal is inputted in the filtering means. The interposer comprises dielectric layers disposed about an internal electrically conductive layer.