USB Relay Controller Board - 4 Channels for Home Automation
4-Channel USB Relay Board with 6-Channel A/D Interface
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USB-OPTO-RLY88 - 8 optically isolated inputs, 8 relays
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TSIR04 - 4 Channel Outputs ,4 optically Isolated Inputs USB Relay Module
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Relay Boards With I/O :: 8 Channel USB Relay Board W/ISO Input Port and AC Adapter
USB Relay
USB 4 Relay Board for Home Automation - v2
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USB Relay Controllers with On-Board Analog Inputs and GPIO for Sensors
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USB DAQ Modules
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