ESP8266 Relaismodul WLAN Relaisschalter Fernbedienung Timer APP Smart Home USA
ab 7,52 €
Alarm System. NC2: Normally closed, the relay is shorted to COM2 before the relay is closed, and it is vacant after being sucked up;. NC1: Normally closed, the relay is short-circuited with COM1 before the relay is closed, and it is vacant after being sucked up;.
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