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8 Channel Relay Board with onboard 5V regulator - Electronics-Lab.com
Wiring 8 Channel Optocoupler Relay Module | 14core.com
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Wiring 8 Channel Optocoupler Relay Module | 14core.com
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2 Channel Relay Board - Electronics-Lab.com
8 Channel Relay Board - Electronics-Lab.com
8 Channel LPT relay board - Electronics-Lab
Rs 232 Relay Control Board using PIC16F84A
