http://tinyurl.com/k2q9cel<P>Waterbug 800 8-Zone Water Sensor Alert KitProduct Review<P> Click on the link for more reviews<P>Electronic Moisture Detector Senses Non-Flammable Conductive Liquids<P>Connect up to 8 supervised or 16 unsupervised WaterBug sensors<P>Built-in audible alarm with silence feature<P>One 'Form C' SPDT relay for an alarm output<P>Accepts 12V and 24V AC/DC connections<P>