The sensor uses 2.4G Wifi to communicate with the server for data.Wall mounted,easier and convenient to install If the water sensor detects leaking water overrun,the detector alarm will sound and you to the situation,preventing potential water damage When the detector was immersed by the water,the notifications will be pushed to your phone in time,reduce flooding risk Whether you are in the office or on the road,you can check the status via app at any time Widely use for washer bathrooms,basements,sinks,water heaters,aquariums dishwashers,refrigerators,fish Tanks,plumbing,toilets,behind toilet,water filtration units,garbage disposals and sump pumps etc, Weight: 0.12786811196 pounds, Manufacturer: QLECXZI