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

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

Modbus RTU 2- Relay Module Wired Ethernet LAN Control MCU W5500 /IP4731

Industrial 8-Ch Ethernet Digital Input/Output Module Modbus RTU / TCP Protocol

RS485 TTL 1 Channel 3.3-30V Relays Board RS485 Chip Relays Module Switches

Industrial-grade 4-channel RS485 Modbus RTU 4-channel high-current relay