Bosch Smart Home Smart door/window contact II [+M] reliably detects open doors and windows and shows their status in the app. The extra thin magnet unit can be attached discreetly to windows on the top or on the side, even those with multiple glazing.As part of an alarm system, it can trigger an alarm if doors/windows are opened without permission. When the alarm system is activated, it can also gives a warning regarding possible security risks if windows/doors are left open. The integrated button for the door/window contact II [+M] has a number of functions: Using the app, a brief or a long push of the button can be set individually to trigger actions or scenarios. With a double click, the break function can be used. Thanks to this practical feature, the window/door can be opened briefly, e.g. to let the dog out, without the alarm being triggered or the heating turned down.The door/window contact [+M] can be used with Bosch Smart Home system or with the current Matter standard functio