Various exemplary embodiments relate to a radar device for detecting objects that intersect an area, the device including a mount attachment a radar sensor an output interface a memory storing one or more environment parameters a processor in communication with the radar sensor, the output interface, and the memory, the processor being configured to: receive, from the radar sensor, signal information retrieve, from the memory, environment parameters calculate, based on the signal information, the distance relative to the sensor of one or more objects calculate an area based on at least one of the environment parameters and determine that at least one of the one or more objects intersect the area.
