Recipient of linear detector of smoke autoadjustable OSID with angle of opening of 8 °. Only suitable to work with the issuers-SP DARED and-SPW DARED and for systems that use an issuing only one. It allows scopes between 30 and 150 meters. Designed, made and certificate according to norm EN54-12. Linear detector based on transmission of beams TO GO and UV, caught by a recipient with detection of image. Very high immunity opposite to structural movements.