2 Channel Relays Module 30A Load for PLC Automation & Industrial Application

4 Channel Relays Module DC12V 30A Control For Home And Lab Applications

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

Industrial 4 Channel Relays Module 12V 30A For Electrical Equipment

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

RS485 CAN Communication Port Relays Module 7V-48V Power Input for Automation

DIY Electronic Delay Timers Relays Module Programmable For Automation

3.3V Relays Module LED Status Lights Fixed Bolt Holes Industrial Automation