The present invention relates to a device for applying at least one product at a de-sired place or spot. The processor is configured to determine whether to redistribute traffic, generate a message upon determining traffic is to be redistributed, the message including cell priority values, the cell priority values including a priority value for each of a plurality of carriers, and transmit the message to the one or more user equipment. An analog-to-digital converter has analog inputs for receiving the adjusted voltage levels of the measurement nodes and outputting corresponding digital count data for each measurement node. 4% when including all harmonics of the first frequency in the range of 20 Hz to 20 kHz, in particular for the first frequency being 1 kHz or 4 kHz. Legs, accessories and couplings and systems incorporating such elements are also described. In one embodiment, portions of both the first rod segment and the second rod segment are positioned within and secured to the securing member.