Relay Module 4 Channel Circuit Automatic Control High Low Level Trigger

5V Low Level Trigger Module: 0-2VDC relay is connected (ON), 3-5VDC relay is disconnected (OFF). 12V Low Level Trigger Module: 0-5VDC relay is connected (ON), 6-12VDC relay is disconnected (OFF). 24V Low Level Trigger Module: 0-12VDC relay is connected (ON), 13-24VDC relay is disconnected (OFF).

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