An identification is made as to when a device is at an anchor location, which can be a proximity zone along an edge of a dead zone or a location where a signal from a beacon is detected. Upon receipt, a table that lists all possible combinations of the search criteria is created. The electrodes are electrically connected to the transparent conductive layer. A high-speed collection system is provided for collecting and removing the spent reagents and fluids from the chamber for either on-line or off-line analysis or for waste treatment. A switching arrangement provides for utilizing either a conventional tuner block or a tuner block according to the present invention on a circuit board.