"Smart door and window contact" "Safe energy in combination with temperature control devices" "Notifications on your smartphone with Wiser Smart Home System" The Schneider Electric Wiser window/door sensor recognizes if a window/door is opened or closed and it directly reports a change to the Wiser Hub. It can trigger automated actions such as switch off the heating system when the window is open to reduce energy consumption. You can select to get alerts on your smart phone when a window/door is opened for increased safety in your home. The sensor includes two parts. The primary part contains a detection circuit that detects the secondary part, which consists of a magnet. Very easy installation, no screws are needed, the sensor is glued on the window or door frame. The window/door sensor is battery operated and require no cabling. Battery lifetime is 5 years at normal usage. When the battery is low (less than 10 %), the status LED blinks orange once a minute, and a message is sent to t