An optoelectronic sensor (10) is provided having a transmitter (12) for operating light, a light receiver (14) for the generation of an electrical received signal from incident light and an evaluation unit (16) which can detect an object in the beam path from the transmitter (12) for operating light to the light receiver (14) from the received light, wherein a first alignment light transmitter (13a) is provided. In this respect, a second alignment transmitter (13b) is provided, with the first alignment light transmitter (13a) and the second alignment light transmitter (13b) being able to be individually activated and the evaluation unit (16) being designed to determine alignment information on the adjustment of the sensor (10) from a received first alignment signal of the light receiver (14) with an activated first alignment light transmitter (13a) and from a received second alignment signal of the light receiver (14) with an activated second alignment light transmitter (13b).