Automatic door , comprising a door controller unit for controlling a door, acting on a door drive; further comprising a monitoring system comprising at least two door sensors mounted on two opposite sides of the door, as seen in passage direction, where each of said sensors comprises a scanning unit that monitors a sensor safety area, comprising one inner region (IR) and one outer region (OR), and each sensor comprises a detection unit connected to the scanning unit where the inner region (IR) is analysed and a first detection information is generated, and where the outer region (OR) is analysed and a second detection information is generated, where the monitoring system comprises at least one evaluation unit that is connected to the detection units and the door controller unit , characterized in that the evaluation unit determines, based on the first detection information and the second detection information of both sensors, that within a predefined timespan (TL) no detection occurs within any sensor safety area, where after this predefined timespan (TL) of no detection, the monitoring system is set to a "restricted mode" in which the first detection information is taken into account only from a restricted area of the inner region(IR); where the door controller unit is supplied with a safety signal based on the second detection information or the first detection information of the restricted area of the inner region (IR) and the second detection information, where further, once a detection in the outer region (OR) or the restricted area of the inner region (IR) occurs, the monitoring system is set back to unrestricted "normal" mode. further comprising a monitoring system comprising at least two door sensors mounted on two opposite sides of the door, as seen in passage direction, where each of said sensors comprises a scanning unit that monitors a sensor safety area, comprising one inner region (IR) and one outer region (OR), and each sensor comprises a detection unit connected to the scanning unit where the inner region (IR) is analysed and a first detection information is generated, and where the outer region (OR) is analysed and a second detection information is generated, where the monitoring system comprises at least one evaluation unit that is connected to the detection units and the door controller unit , characterized in that the evaluation unit determines, based on the first detection information and the second detection information of both sensors, that within a predefined timespan (TL) no detection occurs within any sensor safety area, where after this predefined timespan (TL) of no detection, the monitoring system is set to a "restricted mode" in which the first detection information is taken into account only from a restricted area of the inner region(IR); where the door controller unit is supplied with a safety signal based on the second detection information or the first detection information of the restricted area of the inner region (IR) and the second detection information, where further, once a detection in the outer region (OR) or the restricted area of the inner region (IR) occurs, the monitoring system is set back to unrestricted "normal" mode. <EOS>