T-Relay ESP32 DC 5V Relais 4 Kanal Relaismodul IoT Fernbedienung Schalter Steuerung
23,37 €
K4 relay: I005 relay working indicator. HRS4H-S-DC5V relay: standard power consumption: 360～450 mw. K2 relay: I019 four blue LEDs. K1 relay: I021. K3 relay: I018. 4: The operation is simple and easy to understand.
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