DZ-03 Base is used to mount conventional and intelligent smoke, heat and combination detectors as their conductive base (C-9102, C-9103, I-9102, I-9103). It’s made of flame-resistant plastic ABS, which is a UL94 listed material. It features attractive appearance, novel structure and stable performance. Its flame class is V-0. During installation, you can easily fix the base before connecting cables, and then twist the detector onto the base.