5 PCS Optocoupler Isolation Board, Icstation DC 12V Optocoupler Isolation Module EL817 1 Channel Opto PNP NPN Signal Converter, Isolator High-Level Trigger 80KHz June_2023_update LIGHTWEIGHT PORTABLE TRAVEL PILLOW -

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5 PCS Optocoupler Isolation Board, Icstation DC 12V Optocoupler Isolation Module EL817 1 Channel Opto PNP NPN Signal Converter, Isolator High-Level Trigger 80KHz June_2023_update LIGHTWEIGHT PORTABLE TRAVEL PILLOW -5 PCS Optocoupler Isolation Board, Icstation DC 12V Optocoupler Isolation Module EL817 1 Channel Opto PNP NPN Signal Converter, Isolator High Level Trigger 80KHz Product Features Relay Switch Module5pcs 1 channel photocoupler isolator with stable performance, triggered by DC 12V and 1mA current. Signal VoltagePositive phase amplification with high level trigger. Output equals input. Level ConverterOpto isolators can be used as level converters (NPN