Disclosed is a system for assigning, tracking and storing equivalent emission values associated with a transaction. An example of an electronic device includes a data bus, a transmitting device coupled to the data bus, and a receiving device coupled to the data bus by a bus interface. The Z measurement module utilizes at least three electrodes placed at predetermined relative locations on the patient’s body, and measures the voltage across different electrode pairs while an applying an alternating current through certain electrodes. The blind is dimensioned to be long enough in the front to be draped over the ground and other surfaces proximate to the user to conceal the shape of the user. A pair of legs depends from the strip.