A system and method of creating more than one communication interface between a wireless device using a single, dual-radio transceiver by leveraging the basic service set and radio measurement information. A diaphragm is directly connected to the cylinder and forms a pressure measurement surface. Chelators that are substituted by fluorescent dyes are particularly useful as indicators for metal cations, particularly Na+ and K+ ions, and particularly where binding of the target ion results in a change in the fluorescence properties of the indicator that can be correlated with the ion concentration. In operation, subscriber stations preferably analyze signals as received on a plurality of the randomesque beams to determine one or more \u201cbest\u201d beams for use in communication between the subscriber station and base station. Two photo-interrupters are disposed under the first photo interruption set for detecting the rotational direction and rotational displacement of the rotary disk.