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This kit is in some ways similar to kit 74, the PC-controlled eight relay board. It is a bigger project, but still relatively simple to build and use. This kit provides both eight relay outputs and also four optoisolated digital inputs.
An on-board microprocessor controls the operation, taking serial commands from a PC or other host computer (which may be disconnected or turned off once the relays are set). A case is provided. This kit requires a +12Vdc/500mA power supply (not included).
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View product sheet PDF. Download K108 Windows Driver . Don't forget the power supply.
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