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$54.88$54.88
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$54.88$54.88
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$54.88$54.88
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$54.88$54.88
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$54.88$54.88
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$54.88$54.88
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$54.88$54.88
Timers control the duration of a process by turning an output on or off after a preset time delay or interval. Counters count the number of objects or the number of operations by counting the number of ON/OFF signals from an input device.