Structure and functionAccessories322 | 56Building Technologies A6V10320094_m_en_--Fire Safety 2017-10-313.7.3 Interbase seal RS721Ⴠ For mounting in wet roomsჀ Protection category IP21CჀ Compatible with:– Sounder interbase DBS721– Sounder beacon interbase DBS728– Sounder interbase with additional opticalindicator DBS729Ⴠ Order number: S54319-F32-A13.7.4 Designation plate DBZ1193AჀ To identify the locationჀ Compatible with:– Base attachment wet FDB295/BA721– Base attachment, surface-mounted,humid DBZ1192– DBW1171 base– Interbase DBS72xჀ Order number: BPZ:4864330001See also2 Mounting/Installation [ᇆ 31]3.7.5 Detector locking device LP720Ⴠ For protection against theftჀ Compatible with:– Multi-sensor fire detector OH720– Smoke detector OP720– Heat detector HI720– Heat detector HI722– Multi-sensor fire detector OOH740– Multi-sensor fire detector OOHC740– Interbase DBS72xჀ Order number: S54319-F9-A1See also2 Detector locking device LP720 [ᇆ 33]2 Cover plate BP720 [ᇆ 34]