A time-of-flight sensor module, which is abbreviated as TOF sensor module, comprising: - a housing with at least one insertion opening and a protective window arrangement, - a module insert with a closing section and a carrier section, wherein a holding surface of the closing section at least sectionally abuts on an opening edge of the insertion opening and thereby at least partially seals the housing, and wherein the carrier section extends into a housing interior of the housing in a direction pointing away from the holding surface, - a circuit board arrangement that is arranged on the carrier section, - a light source and a light sensor that are arranged on the circuit board arrangement, - a light optics holder that is arranged in front of the light source and in which light optics are held, as well as a sensor optics holder that is arranged in front of the light sensor and in which sensor optics are held, wherein the protective window arrangement is arranged on the housing in such a way that a region to be illuminated can be illuminated by the light source through a protective window of the protective window arrangement and light reflected on the illuminated region can be detected with the light sensor through a protective window of the protective window arrangement, wherein the protective window of the protective window arrangement is realized in such a way that it is transparent or largely transparent for the light that is used for the detection and emitted by the light source, wherein a coupling passage for coupling the TOF sensor module to an external control unit and/or to a power supply unit is arranged on the holding surface of the closing section, wherein the closing section comprises a coupling socket that encompasses the coupling passage and extends from the holding surface in a direction pointing away from the housing interior, wherein the TOF sensor module comprises a coupling element that extends within the housing interior with a first section and within the coupling socket with a second section, and wherein the coupling element comprises a holding body that carries a first plug arrangement, which is coupled to the circuit board arrangement in the housing interior, and a second plug arrangement, which is galvanically coupled to the first plug arrangement and extends from an end of the holding body located in the housing exterior in a direction pointing away from the housing interior in order to make it possible to electronically couple the circuit board arrangement to the housing exterior. - a housing with at least one insertion opening and a protective window arrangement, - a module insert with a closing section and a carrier section, wherein a holding surface of the closing section at least sectionally abuts on an opening edge of the insertion opening and thereby at least partially seals the housing, and wherein the carrier section extends into a housing interior of the housing in a direction pointing away from the holding surface, - a circuit board arrangement that is arranged on the carrier section, - a light source and a light sensor that are arranged on the circuit board arrangement, - a light optics holder that is arranged in front of the light source and in which light optics are held, as well as a sensor optics holder that is arranged in front of the light sensor and in which sensor optics are held,