3D Model of Acoustic Wall-Mounted Fire alarm Sounder Device

This drawing depicts a 3D model of a wall-mounted fire alarm sounder/notification device. This design features a rectangular housing with rounded corners and a front-facing grille with hexagonal and octagonal patterns for sound propagation. The device appears to be mounted on a backplate for wall installation with visible mounting points at the base. The unit includes what appears to be a display or status window on the upper portion, typical for visual notification capabilities. The device follows standard fire protection equipment design principles, with consideration for both acoustic performance through the speaker grille openings and ease of installation. The model is drawn in millimeters, adhering to international fire safety equipment standards for audible notification appliances.