A radio frequency automated meter reading device for determining quantities of a consumed utility product including electric, gas and water service. A data analyzer, such as a data mining application, provides tools for identifying desirable subscribers within the merged database. The detection circuit is configured to apply a first value of current to the first connector, and apply a second value of current to the second connector. During operation, the radio network controller provides the MBMS data over the common transport bearer and the radio base station retransmits the MBMS data over the common transport channels to the plural cells. In the presence of analyte in the sample, however, the mark operates in concert with a perpendicular test line on the observation area to present a positive result as a plus signal that is visible to the user. Each of the contacts is resilient and in an U shape, and has fist and second abutting portions exposing out of opposing sides of the bottom wall of the insulating housing respectively.