Search - opto isolation relay
Opto-isolated relay module, 5V trigger, single channel, NO contact, easy wiring, fault-tolerant.
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HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger
HSM27200Module description: 1.The module Operating voltage 5V;2.Fault-tolerant design, even if the control l..
US$2.89
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