Infrared light emitted from an infrared light-emitting diode and reflected by a toner that is an object to be detected. A data collection and processing means collects and processes the data sources which are forwarded to a reporting server as a combined data source made available to interested parties. The plunger slide is removably coupled to the piston. Antennae having various form factors can be used to couple a base station to a subscriber terminal which can be located in a sub-optimal location such as deep inside a building or the like. The beverage holding device may automatically extend as the tray is extended. The acoustic filter operates to absorb acoustic waves resultant from the hot gases, therefore enabling the pressure transducer to be mainly responsive to high frequency waves associated with the gas turbine operation.