Sensor apparatus for analyzing a sample gas volume

A sensor apparatus for analysing a sample gas volume, in particular for measuring fine particles in a sample gas volume, with at least one fine particle measuring chamber to accommodate the sample gas that is to be analysed, wherein at least one sensor element for measuring fine particles is assigned to the fine particle measuring chamber, with at least one sample gas feed assigned to the fine particle measuring chamber, with at least one sample gas discharge assigned to the fine particle measuring chamber, with at least one ventilation device assigned to the fine particle measuring chamber, wherein die ventilation device includes a fan with a fan housing, and wherein the sensor apparatus has at least one circuit carrier with at least one control circuit for actuating the ventilation device,

• wherein
• the circuit carrier has a circuit for controlling the measurement of fine particles,
• the circuit carrier is arranged outside the fan housing, and
• the ventilation device has at least one data interface that allows a data-carrying connection to the circuit carrier,
• wherein the fan housing has at least one sensor element for capturing at least one further parameter of the sample gas volume to be analysed, and that at least one control circuit is arranged on the circuit carrier for controlling the capture of the at least one further parameters of the sample gas volume to be analysed.