SOS Alarm centralized control circuit

Posted on Mar 28, 2007

SOS Alarm centralized control circuit can be used to call a hospital bed, can also be used in multi-storey buildings, dormitories, warehouses and other places of anti-theft alarm. The circuit shown in Figure l3-64. The circuit shown in three-channel

SOS Alarm centralized control circuit
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monitoring position, can actually be a lot of road. Circuit thyristor control, KD9 561 or CW9561 analog sound alarm IC A light emitting diode for position display. It may be in a different position control alarm.

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