DC 12V 16 Channel RS485 Remote Control Switch PLC IO Expansion Board Modbus RTU

32CH DIN Rail RS485 Digital Input Controller Module MODBUS RTU PNP NPN DC12V 24V

Long Dist. Set RS485/RS232/ModBus to IEEE802.15.4(Zigbee) Module(DC12V)

DC12V/24V 32 Channel DIN Rail RS485 Input Controller Module MODBUS RTU PNP NPN

Modbus Rtu 1/2/4 Channel 7-24V Relay Module Switch input output RS485/TTL UART-

DC 12V 24V RS485 Remote Control Switch PLC IO expansion Board Modbus RTU module

Modbus Rtu 1/2/4 Channel 7-24V Relay Module Switch input output RS485/TTL UART

7V-24V Modbus-Rtu 1/2/4 Channel Relay Module Switch Modbus RTU Switch RS485 TTL