The line-type heat detector d-LIST is comprised of an evaluation unit SCU 800, sensor cable SEC 15, as well as connection boxes CBO 5. The d-LIST system is suited for smaller tunnel and conveyor belt systems, buildings, underground parking, cable trays, warehouses, cold storage, solar and wind power stations, subway stations, as well as many kinds of industrial plants. Approved by VdS according to EN 54-5 (G 205143), certified according to ATEX for zones 2 and 22. A maximum total cable length of 2 x 250 meters may be connected per unit. SCU 800 and CBO 5 are linked via connection cable CC 15. The optionally available relay board allows for configuration of up to 16 alarm zones to signal fault and alarm states to superordinate systems (FACP/PLC). Several open data protocols are available as well, in order to transmit all unit and sensor cable states to a PLC.