Structural Monitoring Systems Plc, together with its subsidiaries, engages in the design, development, and manufacture of avionic products in the Americas, Europe, the United Kingdom, Asia, Middle East, Australasia, and Africa. It operates through the AEM Avionics, AEM Contract Manufacturing, AEM Comparative Vacuum Monitoring (CVM), and Other segments. The company offers aircraft communication systems, loudspeaker systems, mission radios, avionics consoles, and caution/warning panels. It also provides CVM smart sensor solutions technology and test equipment for crack detection. In addition, it offers contract electronics manufacturing services. Structural Monitoring Systems Plc was incorporated in 2003 and is based in Nedlands, Australia.