Z-Wave Window And Door Sensor Smart Device, RS100 Color:White And Brown Case Included, Battery: 1 Lithium (INCLUDED), Weight 3.2oz Dims:1″ X 3.5″ X 1.75″ Coa China -Allows You to Check to See if Doors And Windows Are Closed at NIight -Allows You to Remotely Monitor Your Doors And Windows -Compatible With Any Z-Wave System
