DC 12V 8 Digital to RS485 Acquisition Switch Board Modbus RTU TTL IO PLC Module

DC 12V 8-Channel Digital Input Module RS485 Modbus RTU Switch Acquisition Board

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

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

Modbus RTU 4-20MA RS485 Voltage Current Analog Acquisition Module 9V 12V 24V

DC 12V 8 Channel Digital Input Module RS485 Modbus RTU Switch acquisition board

4-20MA to RS485 2 Channel DC12V 0-25MA Analog 12Bit ADC Board Modbus RTU PLC

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