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

4-ch Modbus-RTU Relay Switch Module Signal input and output RS485 TTL Controller

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

4-Channel Relay Module Board Ethernet Relay Networks Switch Controller Module

DC7 -24V Modbus Rtu 4 Channel Relay Module Switch input output RS485/TTL UART

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

4-ch Modbus-RTU Relay Switch Module Signal input and output RS485 TTL Controller

WEIDMULLER 110162 RS 30 24VDC SOLID STATE RELAY MODULE QUANTITY!!!