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

Modbus Rtu 1/2/4/8 Channel 7-24V Relay Module Switch input output RS485/TTL UART

Modbus Rtu 4 Relay Module Input 485 Ttl Uart Communication 4-Channel Input1284

Modbus Rtu 4 Relay Module Input 485 Ttl Uart Communication 4-Channel Input1380

Modbus-Rtu 8 Channel Relay Module Modbus RTU 8 Input RS485 Communication1795

Modbus Rtu 4 Relay Module Input 485 Ttl Uart Communication 4-Channel Input5539

Modbus Rtu 4 Relay Module Input 485 Ttl Uart Communication 4-Channel Input2091