NE555 12V DC Adjustable Time Delay Relay Timer Switch Module Shield 0~10S

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NE555 DC 12V Delay relay shield Timer Switch Adjustable Module 0 to 10 Second

DC 12V Delay Relay Shield NE555 Timer Switch Adjustable Module -UK

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NE555 5V DC Adjustable Time Delay Relay Timer Switch Module Shield 0~10S