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

DC Relay 12V Timer Switch Module Delay Relay Shield

NE555 DC 12V Relay Timer Switch Module

NE555 DC 12V Relay Timer Switch Module Key Features:

Specifications of NE555  Relay Timer Switch:

How NE555 Timer Switch Relay works:

NE555 Timer Switch Relay 12V Relay Review:

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