The ZR432-2P Radio Multisensor (Optical/Heat) Detector is specifically designed for use with the Ziton ZP2 (all versions) and ZP3 (firmware versions 3.12 and later) addressable control panels. When used with legacy Ziton ZP3 (firmware version 3.11 and earlier) or ZP5 systems, the detector functions and installation methods may be different. These differences are described in this installation sheet.