Highly effective wind shield for pressure gradient and pressure receivers with low sound effects. The foam hollow sphere encloses an air volume around the capsule, similar to a wind protection basket. Particularly when using CCM-L, care must be taken that the W 5 D is inserted as far as possible (not suitable for active cables, MK 6, MK 4 V, MK 4 VXS, MK 41 V, MK 8, as well as the corresponding CCM)