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Technical specifications and instructions Features  Interactive  Comprises the DYFI+ adaptive and self learning    function  With SelfVerify function for reduced maintenance/testing and increased reliability  Selective to misleading environmental phenomena that in a traditional system would lead to an unwanted fire alarm  Detection of visible smoke  Short circuit isolator in each detector  Automatic addressing  Proven technology  Immune to electromagnetic disturbance  Additional coating of PCB  Designed to meet the requirement of the major maritime classification societies