This technology relates to a condensation reduction system for a sensor. The system may comprise a sensor cover, wherein the sensor cover is configured to house one or more sensor components, a flexible, external chamber, and a conduit. The external chamber may be communicably coupled to an interior of the sensor cover via the conduit configured such that during an increase of pressure of gas within the sensor cover the gas flows to the external chamber via the conduit and during a decrease in the pressure of gas within the sensor cover the gas flows from the external chamber to the sensor cover via the conduit.