10PCS DC12V 1CH PLC Digital Relay Module Cyclic Delay/Timed Switch/ Self-Locking

(When T1 reaches, the relay closes. When T2 reaches, the relay opens. And the cycle goes on. T1 and T2 adjustable between 0 second to. 5)Self-lock relay mode: we feed CH1 a high level pulse signal, relay closes.

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