1 Stück 2 Kanal Serielle Schnittstelle Relais Modul DC 12V PC Computer Fernbedienung Switch
9,50 €
Relay open (issue this command ，Relay open, COM connect to NO ）. Relay close (issue this command ，Relay close, COM disconnect NO, and COM connect to NC ）. 1 x DC 12V 2Ch RS232 Relay Board Relay toggle（Relay status reversal，if COM connect to NO，this commands will Disconnect COM to NO and Reverse COM connect to NC，and vice versa）. ).
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