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Schneider 99AC Mechanical Ding Dong Door Bell Chime

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Schneider 99AC Mechanical Ding Dong Door Bell Chime

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A doorbell is a signaling device typically placed near a door to a building's entrance. When a visitor presses a button the bell rings inside the building, alerting the occupant to the presence of the visitor. Although the first doorbells were mechanical, activated by pulling a cord connected to a bell, modern doorbells are electric, operated by a pushbutton switch.

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