NOT short M Pads on PCB(0:Switch OFF;1 Switch ON) It can drive 3V/5V/12V relay/LED and so on. 00101:120 seconds 01101:9 minutes 10101:24 minutes 11101:55 minutes. 00111:5.0 hours 01111:9.0 hours 10111:16 hours 11111:24 hours.
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