4-Bit Relay Module Optocoupler Isolation DC 3.3V-24V TTL Amplifier Board MCU Drive Compatible with NPN/PNP

4-Bit Relay Module Optocoupler Isolation DC 3.3V-24V TTL Amplifier Board MCU Drive Compatible with NPN/PNP
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sku: 1005002632224365
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$24.39
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