Patent ID: 8395014

Claim:
A moisture monitoring system for monitoring liquid leakage of a wearer and, in turn, for monitoring wetting of a diaper, nappy, incontinence pad or alike sanitary product, the system including: i) two or more than two electrodes ii) a hydrophobic liquid permeable substrate in which the electrodes are encased and the liquid permeable substrate has one or more intermittent gaps between the electrodes so as to extend between the electrodes in a discontinuous manner, and wherein the liquid permeable substrate lacks or has a low capacity for holding or storing liquid; and iii) a hydrophilic liquid absorbing substrate in contact with the liquid permeable substrate, whereby in the event of any initial liquid leakage, an electrical bridge connecting the electrodes extends through the permeable substrate by liquid located on or in the permeable substrate only, said liquid subsequently drains from the permeable substrate so as to electrically disconnect the electrodes, and then following a further liquid leakage, another electrical bridge connecting the electrodes extending through the permeable substrate is reformed by liquid located on or in the permeable substrate only to enable multiple leakage events to the monitored, and wherein when the liquid storage capacity of the liquid absorbing substrate has been reached, drainage of the liquid from the liquid permeable substrate will be hampered and thus the electrodes will remain in electrical connection by virtue of liquid retained in the liquid permeable substrate.