Method for operating an optoelectronic detection device for monitoring at least one monitoring region with optical monitoring signals, wherein - at least one reception start signal (58a, 58b) is communicated to at least one optical receiving unit (24a, 24b), - by means of the at least one receiving unit (24a, 24b) in response to the at least one reception start signal (58a, 58b), a reception process is started and at least one trigger signal (44a, 44b) is generated, - in response to at least one trigger signal (44a, 44b) directly or indirectly by means of at least one optical transmitting unit, at least one optical monitoring signal is generated and transmitted into the at least one monitoring region, - reflection monitoring signals originating from monitoring signals reflected in the at least one monitoring region are received by the at least one optical receiving unit (24a, 24b), characterized in that - at least one first reception start signal is communicated to at least one first receiving unit and at least one second reception start signal is communicated to at least one second receiving unit, - by means of the at least one first receiving unit in response to the at least one first reception start signal, a reception process that is carried out by the at least one first receiving unit is started and at least one first trigger signal is generated, - by means of the at least one second receiving unit in response to the at least one second reception start signal, a reception process that is carried out by the at least one second receiving unit is started and at least one second trigger signal is generated, - a transmitter trigger signal is determined from the at least one first trigger signal and the at least one second trigger signal, which transmitter trigger signal, at least with regard to its trigger function, corresponds to the later of the at least two trigger signals (44a, 44b), - in response to the transmitter trigger signal, at least one optical monitoring signal is generated by at least one optical transmitting unit. - at least one reception start signal (58a, 58b) is communicated to at least one optical receiving unit (24a, 24b), - by means of the at least one receiving unit (24a, 24b) in response to the at least one reception start signal (58a, 58b), a reception process is started and at least one trigger signal (44a, 44b) is generated, - in response to at least one trigger signal (44a, 44b) directly or indirectly by means of at least one optical transmitting unit, at least one optical monitoring signal is generated and transmitted into the at least one monitoring region, - reflection monitoring signals originating from monitoring signals reflected in the at least one monitoring region are received by the at least one optical receiving unit (24a, 24b), - at least one first reception start signal is communicated to at least one first receiving unit and at least one second reception start signal is communicated to at least one second receiving unit, - by means of the at least one first receiving unit in response to the at least one first reception start signal, a reception process that is carried out by the at least one first receiving unit is started and at least one first trigger signal is generated, - by means of the at least one second receiving unit in response to the at least one second reception start signal, a reception process that is carried out by the at least one second receiving unit is started and at least one second trigger signal is generated, - a transmitter trigger signal is determined from the at least one first trigger signal and the at least one second trigger signal, which transmitter trigger signal, at least with regard to its trigger function, corresponds to the later of the at least two trigger signals (44a, 44b), - in response to the transmitter trigger signal, at least one optical monitoring signal is generated by at least one optical transmitting unit.