The SIGA-TS4 is a trim skirt accessory used with Edwards Signature Series detector mounting bases installed on 4-inch electrical boxes. It is designed to provide a finished appearance by covering the exposed mounting ears and surface imperfections around the detector base installation. The trim skirt provides additional coverage around the detector base, helping conceal uneven surfaces or installation marks that may remain visible after mounting. This allows the detector assembly to present a cleaner, more finished appearance at the ceiling. Constructed from high-impact engineering polymer with a white finish, the SIGA-TS4 provides a visual match to Edwards Signature Series smoke and heat detector assemblies, maintaining a consistent look across installed devices.