This dataset was created collecting probe requests generated by 24 devices inside a semianechoic chamber. The scanning duration is around 22 minutes and for each probe request acquired, several details are reported: - MAC ADDRESS: for privacy reasons the id annotated in mac column is the result of hashing with SHA256 algorithm on the original mac address - SEQ: the sequence number of the probe request - TIME: is the unixtime of istant when the probe request where collected - ID_X: for each column, the X value indicates the information element ID and its value represents the length for that field - OUI: indicates the Organizationally Unique Identifier directly from the original mac address - VENDOR: contains the vendor extracted from the original OUI.