Instrument sunshade NA41

NA41 Outdoor Protection Device can effectively protect CRY21xx series noise transducers from rain and dust, reduce wind noise, and thus enable the noise transducers to monitor outdoor noises. The design lifetime of NA41 is more than 10 years. Periodic cleaning is required at the specified intervals. The protection grade is IP43. The material is shown in the figure. The outdoor protection device consists of a wind shield (sponge) and upper and lower parts mainly made of PUM materials. The protection grade is IP43. The wind shield effectively protects the noise transducer from rain and dust. The waterproof membrane under the wind shield is seamlessly designed to further ensure protection against rain and dust.