Detection and localization of multiple radio controlled (RC) electronic devices has many security applications. This paper first proposes a cost-effective mobile array detector for such RC electronic devices. Subsequently, by using the array detector, a novel scheme is presented for detection, identification, and localization of multiple devices emitting unintended passive emissions. The Hurst parameter method is proposed for detection and identification of devices with super-regenerative receivers while peak detection is used for detection and identification of devices with super heterodyne receivers. Experimental results demonstrate that the proposed scheme outperforms traditional methodologies with single antenna.