Domestic Seismic Alarm (1)

Published:2011/6/27 2:47:00 Author:Sue | Keyword: Domestic, Seismic, Alarm | From:SeekIC

When to use the alarm, put it on the wall or on the window sill. When there is an earthquake, the heavy hammer will have vertical vibration. S1 is connected and VT is connected. IC begins to work, and BL will make a short alarm sound. At the same time, HL is illuminated. Then the heavy hammer will have horizontal mobility. When S2 is connected, IC is triggered and the alarm sound will be changed.



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