Abstract: An alarm sensor for an opening of a building area comprising an opening sensor suited for detecting an opening event of the opening, an inhibition device suited for at least determining the presence of a person in the interior space near the opening, and an electronic unit suited for providing the detection signal if the opening sensor detected the opening event and if the inhibition device did not detect a presence during a first time before the opening event.
Abstract: An alarm sensor for an opening of a building area comprising an opening sensor suited for detecting an opening event of the opening, an inhibition device suited for at least determining the presence of a person in the interior space near the opening, and an electronic unit suited for providing the detection signal if the opening sensor detected the opening event and if the inhibition device did not detect a presence during a first time before the opening event.