| Brand | Unbranded/Generic |
|---|---|
| select | 3 CH With Optocoupler |
Check the listing for details. DC 3.3V 5V 3-Channel Relay Module With Optocoupler Isolation Compatible Signal. Condition: New. Listed at 3.98 USD. 3-Channel Relay Module With Optocoupler Isolation Compatible 3.3V 5V Signal.
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