Hellow guys, Welcome to my website, and you are watching R4D6F20 DC 12V/24V 20Ch Multi-function PLC IO expansion board. and this vIdeo is uploaded by eletechsup I/O Module at 2024-08-30T20:14:02-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.