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8CH 12V RS232 Serial port Relay Module Switch Board for PLC Lamp LED Smart home

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1 xDC 12V 8Ch RS232 Relay Board. Output indication : relay output with LED indicators,easy to see working status of the relay;. 8 Channel Relay Module;. Standby current (all relays closed) 18MA, 1 rel...
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Item location:China
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