7V - 24V countdown timer module timer switch module
Product parameters:
DC + : the positive 7 v and 24 v input voltage
DC - : negative 7 v and 24 v input voltage
The OUT + : the positive 7 v and 24 v output
The OUT - : output negative 7 v and 24 v
CB, COM, CK is the 12 v / 24 v relay
The input voltage and output voltage is the same products!
Product 3 button is for adjusting the countdown, positive number beating, you can add and subtract the time!
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