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How to use Digital Time Delay Relay Dual LED 0S to 999 hours

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How to use Digital Time Delay Relay Dual LED 0S to 999 hours

In this tutorial we learn how to use this 0-999 second, 0-999 minutes and 0-999 hours dual LED dual timeer display.

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You can get this item From AliExpress or eBay. I have no affilation with them.

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