Introduction This wire water leak detector can avoid serious economic loss. Protect your home from potential water damage because water leak can be a potential danger.You can place it near plumbing,sinks,aquariums,sump pumps,refrigerators,dishwashers,toilets,basements,washing machines,water heaters,and garages.This wire water detector can not work alone,it must work with wire alarm system. Note: This product is just the wired type water sensor , It can't work independant , You should add to work with alarm host specification: Product Description Dimension: 30*20*8mm length: 1 M Output: NO Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes: 5 x Cable