4ch 3.3V 5V 12V 24V Digital Logic Level Conversion Module PNP/NPN to NPN Optical Isolation Board for Arduiuo NANO STM32 AVR

4ch 3.3V 5V 12V 24V Digital Logic Level Conversion Module PNP/NPN to NPN Optical Isolation Board for Arduiuo NANO STM32 AVR
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sku: 1005006976017924
$2.91
Shipping from: China
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