The Flair Water Probe, P/N: 3010-H2OS36-EN1751, works with the Inovonics EN1751 transmitter to detect leaking or flooding water or other electrically conductive fluid. The Water Probe comes with 15 ft. leas and wires directly to the EN1751. Probe is heavy enough to sit on floor without being knocked over. When conductive liquid rises 1/16″ from floor and bridges both of the probes the loop will short, triggering an alarm. Wires are supervised and will trigger tamper alarm if cut or disconnected.