Serial TTL 4-way, relay control board Control Board Serial Port TTL 5V 10A

Serial TTL 4-way, relay control board Control Board Serial Port TTL 5V 10A

4 way quad relay module with dipswitch control board serial port TTL 12V, 5V 10A relay

4-32CH 10A 20A DC 12V 24V RS485 Bus Relay Module DIP Setup Parameters Modbus RTU Serial Port UART Switch Board HMI PLC

4-way 4-way relay module with jog switch control board serial port TTL arduino 5V 10A

4-32CH 10A 20A DC 12V 24V RS485 Bus Relay Module DIP Setup Parameters Modbus RTU Serial Port UART Switch Board HMI PLC

4 Way Four Way Relay Module with Switch Control Panel Serial Port TTL 5V 10A

2 in 1 RS485 & RS232(TTL) AT & Modbus RTU Relay Switch Board PC USB COM UART Serial port 1 Channel 12VDC Module

DC 7V-38V 16-channel 16 Ch Serial Relay Module 10A/250V Relay Module Board DC 12V 24V Relay Module Open/Normally Closed Terminal

DC 7V-38V 16 Channel 16 CH Serial Relay Module 10A 250V Load USB Power Supply Development Board Relay Module DC 12V 24V 36V

4-32CH 10A 20A DC 12V 24V RS485 Bus Relay Module DIP Setup Parameters Modbus RTU Serial Port UART Switch Board HMI PLC

DC 5V 12V 24V 2 in 1 8ch USB Serial Port Relay Module UART RS232 TTL Switch Board CH340 for Windows Linux MAX OS

2 in 1 DC 5V 12V 24V 8ch USB Serial Port Relay Module UART RS232 TTL Switch Board CH340 for Windows Linux MAX OS

2 in 1 DC 5V 12V 24V 8CH USB Serial Port Relay Module UART RS232 TTL Multifunction Switch Board CH340 for Motor LED PTZ PLC IPC

4-32CH 10A 20A DC 12V 24V RS485 Bus Relay Module DIP Setup Parameters Modbus RTU Serial Port UART Switch Board HMI PLC

2 in 1 DC 5V 12V 24V 8ch USB Serial Port Relay Module UART RS232 TTL Switch Board CH340 for Windows Linux MAX OS

4-32CH 10A 20A DC 12V 24V RS485 Bus Relay Module DIP Setup Parameters Modbus RTU Serial Port UART Switch Board HMI PLC

4-32 Channels 10A 20A DC 12V 24V RS485 Bus Relay Module DIP Setup Parameters Modbus RTU Serial Port UART Switch Board HMI PLC

2 in 1 DC 5V 12V 24V 8CH USB Serial Port Relay Module UART RS232 TTL Multifunction Switch Board CH340 for Motor LED PTZ PLC IPC

5V 12V 24V 2 in 1 DC 8ch USB Serial Port Relay Module UART RS232 TTL Switch Board CH340 for Windows Linux MAX OS

2 in 1 DC 5V 12V 24V 8ch USB Serial Port Relay Module UART RS232 TTL Switch Board CH340 for Windows Linux MAX OS

5V 12V 24V 2 in 1 DC 8ch USB Serial Port Relay Module UART RS232 TTL Switch Board CH340 for Windows Linux MAX OS

2PCS UD23A08 8 Channel USB COM Serial Port UART Relay Board RS232 TTL CH340 for WIN7 WIN10 Linux MAX Drive

UD23A08 8 Channel 2PCS USB COM Serial Port UART Relay Board RS232 TTL CH340 for WIN7 WIN10 Linux MAX Drive

2 In 1 RS485 RS232 TTL AT Modbus RTU Relay Switch Board PC USB COM UART Serial Port 1 CH 12V DC Module

2PCS UD23A08 8 Channel USB COM Serial Port UART Relay Board RS232 TTL CH340 for WIN7 WIN10 Linux MAX Drive

TTL Eight Channel Serial Port Relay Module 433MHz RF Control Supports Self-locking Interlock Point-to-point Round-trip Mode

Modbus RTU Relay Module 1/2/3/4 RS485 TTL UART Serial Control

DC 7V-38V 16 Channel 16 CH Serial Relay Module 10A 250V Max Load USB Power Supply Development Board

DC 7V-38V 16Channel 16 CH Serial Relay Module Smart Expansion Board 10A 250V USB Power Supply Development Board USB Relay Switch

Serial/485 bus 2/4/8 10A relay outputs

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