A testing apparatus for an optoacoustic device includes a light pulse sensor operatively connected to a light output port of the optoacoustic device, the light pulse sensor being adapted to sense a pulse of light capable of generating an optoacoustic response in a subject and to distinguish between the light pulse and the at least one other light pulse on the basis of the predominant wavelength. The light pulse sensor outputs a trigger signal associated with the distinguished light pulse when such light pulse is sensed. A transducer signal simulator outputs a first plurality of electrical signals simulating those produced by a transducer array and refiective of an optoacoustic response in a subject to a light pulse at a first wavelength in response to a trigger signal from the light pulse sensor associated with a light pulse having a first wavelength. The simulator outputs a second plurality of electrical signals simulating those produced by a transducer array and reflective of an optoacoustic response in a subject to a light pulse at a second predominant wavelength in response to a trigger signal from the light pulse sensor associated with a light pulse having a second wavelength. Conductors carry the plurality of electrical signals output by the transducer signal simulator to the pins of a multi-pin connector.Selon linvention, un appareil de test pour un dispositif optoacoustique comprend un capteur dimpulsion lumineuse raccordé fonctionnellement à un port de sortie de lumière du dispositif optoacoustique, le capteur dimpulsion lumineuse étant conçu pour détecter une impulsion lumineuse capable de produire une réaction optoacoustique chez un sujet et pour distinguer entre limpulsion lumineuse et au moins une autre impulsion lumineuse en fonction de la longueur donde prédominante. Le capteur dimpulsion lumineuse produit en sortie un signal de déclenchement associé à limpulsion lumineuse distinguée lorsquune telle impulsion lumineuse est détectée. Un simulateur de s
