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5V 2-Channel Relay Module with Optocoupler Isolation, Supports High and Low L...

2Pcs 5V One Channel Relay Module Low Level for SCM Control, Arduino [USA store]

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2x DC 5V Relay Module 2-Channel Relay Switch Optocoupler Isolation High/Low

2Pcs 5V One Channel Relay Module with Opto Isolation, High/Low Level Trigger