Abstract: A radio frequency detection device that includes a housing, a power supply port, a radio frequency circuit board, and a microprocessor is disclosed. The radio frequency detection device is configured to detect signals between approximately 20 Mhz and 6020 Mhz. The microprocessor is configured to report the frequency and decibel level of a detected signal to a computer for display on a user interface. A user may set an alert frequency range and an decibel sensitivity threshold to filter out certain devices. The microprocessor is configured to initiate an alert when any signal is detected, or when a signal within either or both the alert frequency range or the decibel sensitivity threshold is detected. The alert may include pulsing of LED lights on the housing, a message on the user interface, and/or broadcast of an audio alert from a speaker associated with the microprocessor.