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NA41 Outdoor Protection Device

NA41 Outdoor Protection Device
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NA41 Outdoor Protection Device Manual V1.0 Introduction NA41 outdoor protection device consists of main part and windshield. The main part is divided into the upper part and the lower part. The upper part is arranged in a neat way with a convex angle in fixed degree, which can fix windshield and guide water at the same time, so that it will not flow into the noise sensor. The lower part is perfectly adapted to CRY21xx series noise sensor, which can fix the sensor and protect sensor shell. 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. NA41 is designed to last more than 10 years, and cleaning is required at regular intervals to improve test accuracy and extend device life. By the windshield (sponge) and PUM material as the main body up and down two components Service life time > 10 years Parameters NA41 Outdoor Protection Device IP43 Ingress Protection Material Life Time Appearance Size Add: No.10, Xianqiao Road, Zhongtai Street, Yuhang District, Hangzhou, Zhejiang Province E-mail：cry@crysound.com www.c

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