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12V 1/2/4/8/16 Channel Relay Module With Optocoupler For PIC AVR DSP ARM
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1CH Active H/L 5V OptoCoupler Relay Module
1CH Active H/L 5V OptoCoupler Relay Module
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Shop optocoupler relay

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$3.98
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3.3V 5V 12V 24V 4 Channel Relay Module High And Low Level Trigger Dual Optocoupler Isolation Relay
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