Modulo circuito di ritardo DC 3-12V 1s-20h per interruttore di ritardo timer preciso 2,54mm

4,5,6 pin are used to set module output port Vo state,5-6 connection,power on initial state and output after reset are both high level;when timing is over output opem circuit;4-5 connection,power on initial atate and output after reset are both open circuit,when timing is over output high level.

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