Abstract: A fluid assay system comprises a swab having an absorbent portion for receiving and retaining a fluid sample. The system also comprises an electrode module having at least one electrode, arranged so that it can be selectively placed over the absorbent portion of the swab in order to contact the electrode with the fluid sample. The system further comprises a reader module configured to process signals from the electrode module, with the electrode and reading modules arranged such that they can be coupled together for communication of the signals from the electrode module to the reader module.

Abstract: A cap including a head attachment portion having a front section, a rear section and two side sections; a visor pivotally connected to said head attachment portion and being selectively moveable between a first position adjacent said front section and a second position; and movement limiting means, formed of a flexible material, having a first end attached to said visor and a second end attached to said head attachment portion intermediate said front and rear sections, said movement limiting means being adapted to inhibit movement of said visor beyond said second position.