Rectangular methacrylate plate measuring 195x320 mm with an engraved emergency sign adhered to the back and a thin decorative aluminium contour on the top so that it blends perfectly with the surroundings. Left wall pennant fitting system. These are the methacrylate signs, with a battery-powered maintained light module. An internal microprocessor checks the status of the device and periodically performs functionality and autonomy tests and reports the status. If the luminaire is connected to a Central TMA, the details of its status are sent through this module to a control computer, which can monitor the status of the entire emergency lighting system.