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MM-021 地震報警器

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Product Description

應用: 本模塊可檢測地震或其他一些人為震動,如安放在物件上,可作為報警器,當物件被移動時即發出警號。 (不包含電池)


尺寸

35x60 mm

適用年齡

小學五年級或以上


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