3x DC12V 2 in 1 PC COM DB9 RS232 Serial Port Delay Relay UART Switch PLC Module
19,36 €
3 Two serial ports: RS232 DB9 interface, TTL 232 interface. 3 pcs 1 channel DC 12VDB9 RS232&TTL232 Relay Board. 2: (DC12V)Standby current (all relays closed) 17MA, relay open 48MA. Toggle : Enter the Toggle command, the Rreceiver Relay is Open, Enter the Toggle command again, Relay is Close;.
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