Relay Module High And Low Level Trigger Home Intelligent Control New Practical

Trigger mode: low level trigger, high level trigger. LED indicator lights on each relay switch. 5V low level trigger module: 0-2VDC relay ON (ON), 3-5VDC relay disconnected (OFF). 12V low level trigger module: 0-5VDC relay ON (ON), 6-12VDC relay disconnected (OFF).

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