Modbus RTU 4 Channel Relay Module with RS485/TTL UART, 1 Input 1 Output, 7-24...

Modbus RTU 8 Channel 12V Relays Module Featuring RS485 Input Output

OptocouplerIsolated RS485 MODBUS RTU Communication Board PLC IO Expansion Module

8 Channel 12V Relays Module Modbus RTU With RS485 Communication For DIY Projects

R4AVA07 7CH 5V 10V DC Analog Voltage Acquisition Sampler RS485 ModBus RTU Module

32 Channel PNP NPN Isolated Digital Input RS485 Modbus Rtu Controller Module

7CH R4AVA07 5V 10V DC Analog Voltage Acquisition Sampler RS485 ModBus RTU Module

0-5V 0-10V 7ch ADC Analog Voltage Acquisition Sampler RS485 ModBus RTU Module