Arrangement for monitoring and earliest detection of fire for a plurality of potentially flammable or potentially explosive vessels and/or housings with the use of multi-criteria smoke detectors with intelligent fire parameter detection / fire parameter assessment and self-monitoring, characterised in - that all the smoke detectors used are connected to one another via a ring bus, and in no circumstances whatsoever via a CAN-bus, and - that the smoke detectors used in the arrangement, and allocated to the ring bus are installed in each case in pairs in the ring bus, and are always wired up as two interlocking alarms in the ring bus, and - that a pair of smoke detectors arranged in the ring bus is arranged either in a dual-detector module or as two mono-detector modules allocated to one another in pairs in the ring bus, and - that the two detector bases with allocated smoke detectors, are arranged in/or the dual-detector module, are arranged with one or two separators, plug-in connectors for a ring bus signal input, a ring bus signal output and an external signal output, and - that the mono-detector modules allocated to one another in pairs are built up analogously to the dual-detector modules, however in each case contain merely one detector base with an allocated smoke detector, and moreover they distinguish themselves from the dual-detector modules, in that one of the two mono-detector modules, the mono-detector module (4.1) contains a separator, a ring bus signal input, a ring bus signal output, and that the mono-detector module (4.2) allocated to this mono-detector module (4.1) as a pair has a ring bus signal input, a ring bus signal output and an external signal output, wherein a separator is likewise arranged in special forms of construction for the mono-detector modules (4.2), and - that on the underside of the dual-detector module, as well as also on the underside of the mono-detector modules (4.1 and 4.2), i.e. in each case opposite to the smoke detector, one or more adhesive elements are arranged, and - that in each of the vessels to be monitored at arbitrary, significant positions for fire detection in the vessel in each case, either one dual-detector module interconnected in the ring bus or the two mono-detector modules arranged with one another in a pair in the ring bus is/are secured by means of the adhesive element(s), and that these are connected to an evaluation unit taking over the power supply for the BUS subscribers via the ring bus in the allocated dual-detector modules and/or mono-detector modules in the vessels to be monitored, and if necessary also to further subscribers. - that all the smoke detectors used are connected to one another via a ring bus, and in no circumstances whatsoever via a CAN-bus, and - that the smoke detectors used in the arrangement, and allocated to the ring bus are installed in each case in pairs in the ring bus, and are always wired up as two interlocking alarms in the ring bus, and - that a pair of smoke detectors arranged in the ring bus is arranged either in a dual-detector module or as two mono-detector modules allocated to one another in pairs in the ring bus, and - that the two detector bases with allocated smoke detectors, are arranged in/or the dual-detector module, are arranged with one or two separators, plug-in connectors for a ring bus signal input, a ring bus signal output and an external signal output, and - that the mono-detector modules allocated to one another in pairs are built up analogously to the dual-detector modules, however in each case contain merely one detector base with an allocated smoke detector, and moreover they distinguish themselves from the dual-detector modules, in that one of the two mono-detector modules, the mono-detector module (4.1) contains a separator, a ring bus signal input, a ring bus signal output, and that the mono-detector module (4.2) allocated to this mono-detector module (4.1) as a pair has a ring bus signal input, a ring bus signal output and an external signal output, wherein a separator is likewise arranged in special forms of construction for the mono-detector modules (4.2), and - that on the underside of the dual-detector module, as well as also on the underside of the mono-detector modules (4.1 and 4.2), i.e. in each case opposite to the smoke detector, one or more adhesive elements are arranged, and - that in each of the vessels to be monitored at arbitrary, significant positions for fire detection in the vessel in each case, either one dual-detector module interconnected in the ring bus or the two mono-detector modules arranged with one another in a pair in the ring bus is/are secured by means of the adhesive element(s), and that these are connected to an evaluation unit taking over the power supply for the BUS subscribers via the ring bus in the allocated dual-detector modules and/or mono-detector modules in the vessels to be monitored, and if necessary also to further subscribers.