The present invention is a molding material made from a combination of recycled scrap tire particles and recycled plastic flake. The housing has one end portion and another end portion. Also included within the invention is a format wherein unlabeled competitor for analyte serves as a gatekeeper in the capture zone, competing with analyte for labeled anti-analyte, which analyte will be captured in a detecting portion of a capture zone. An adder is employed to add an antenna signal in a first signal path extending via the first multipole switch to a different antenna signal in a second signal path extending via the second and third switches.