Relay Module 2 Channel 3V 3.3V Dual High Low Trigger Arduino ESP8266 with optocoupler isolation protection.
Specification :
-Relay Working Voltage : 3V
-Relay Load Voltage-Current : 125VAC-250VAC/10A or 28VDC-30VDC/10A
-Optocouple type : PC817
-Input Tiggrer type : High or Low









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