Abstract: Sensor device for an elevator comprising a car comprising an elevator door, which has a door movement space in the passage and disposed in front of which is a spatial region in front on the floor in front of the door movement space, comprising a detection device, configured for separately detecting objects in the door movement space and in the spatial region in front and for carrying out successive detection passes, and comprising an evaluation device, wherein the evaluation device has a memory and is configured to store in the memory at least temporarily the information as to whether an object has been detected during a detection pass, and to output an early closing signal for closing the elevator doors if no object has been detected during a detection pass and the information that an object has been detected has been stored in the memory for a preceding detection pass, in particular for a specific preceding detection pass, in particular for the directly preceding detection pass.