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USB Relay Boards USB Relay Boards

USB relay boards and modules. Virtual Serial Port, RS232 serially controlled and software examples.
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USB Four(4) Relay Output Module,Board for Home Automation

USB Four(4) Relay Output Module,Board for Home Automation

 USB Four Channel Relay Board with temperature sensor TCN75A

USB Four Channel Relay Board with temperature sensor TCN75A

 USB Eight Channel Relay Board for Automation - 12V

USB Eight Channel Relay Board for Automation - 12V
Price: $25.50
Quantity:
Price: $34.50
Quantity:
Price: $41.00
Quantity:
USB Eight Channel Relay Board for Automation - 24V

USB Eight Channel Relay Board for Automation - 24V

 USB 16 Channel Relay Module - RS232 Controlled, 12V - ver.1

USB 16 Channel Relay Module - RS232 Controlled, 12V - ver.1

 USB 16 Channel Relay Module - RS232 Controlled, 24V

USB 16 Channel Relay Module - RS232 Controlled, 24V
Price: $46.00
Quantity:
Price: $79.00
Quantity:
Price: $88.00
Quantity:
USB 16 Channel Relay Module - RS232 Controlled, 12V - ver.2

USB 16 Channel Relay Module - RS232 Controlled, 12V - ver.2
Price: $80.00
Quantity:
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