5pcs 1 Channel Optocoupler Isolation Module PC817 EL817 3-5V 12V 24V Photoelectric Isolator Rail Holder PLC Drive Motor Board
USD 9.11
5pcs 1 Channel Optocoupler Isolation Module PC817 EL817 3-5V 12V 24V Photoelectric Isolator Rail Holder PLC Drive Motor Board