Bb sensors weatherproof housings for outdoor humidity sensors bb sensors strahut mast this professional quality weatherproof housing is designed for the protection of outdoor mounted humidity sensors protecting them from sunlight and rain the protective radiation hat is oslash 110 x 150mm and does not affect measurement in any way the cover has a 10 segment design and uses uv stabilised white makrolon which gives long lasting durability bb sensors strahut mast waterproof housing