Fire detector and a method for detecting a clutter object

It is a fire detector 1 proposed, wherein the fire detector comprises a housing 2, the housing 2 can be arranged on a wall and / or on a ceiling 3 of a room, with a sensor for the detection of a fire, the sensor in or on the housing 2 is arranged, with at least one radiation transmitter section 4 for emitting transmission light radiation L1 in an environment of the fire detector 1, with at least one radiation receiver portion, wherein the at least one radiation receiver section for detecting a received light ray L2, which formed by the emitted and reflected by a clutter object 5 transmit light radiation L2 is, having an evaluation device, wherein the evaluation device is configured to detect by the detected reception light radiation clutter object 5, wherein the fire detector 1 comprises a receiver light-emitting diode 6, which is configured for emitting light radiation and comprises at least one radiation receiver section.