Revision history of "Noise Alarm"

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  • (cur | prev) 03:30, 4 August 20151304410487@qq.com (talk). . (2,207 bytes) (+2,207). . (Created page with "{{Language|Noise Alarm}} {| style="width: 800px;" |- | ==Objective== When noise reaches a certain value around you, the alarm goes off. ==Principle== ==Equipment== {|class...")