ProMax 16mm Metal Piezo Touch Switch Waterproof IP68 Momentary Red Green 11.1V 5400mAH LiPo Battery the BC547 is perfect for

the BC547 is perfect for 5V logic circuits

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ProMax 16mm Metal Piezo Touch Switch Waterproof IP68 Momentary Red Green 11.1V 5400mAH LiPo Battery the BC547 is perfect forProMax 16mm Metal Piezo Touch Switch Waterproof IP68 Momentary Red Green The ProMax 16mm Metal Piezo Touch Switch is a premium momentary contact switch featuring capacitive piezo technology with dual color LED indicators in red and green. This industrial grade switch is engineered for applications requiring reliable tactile feedback in harsh environments, delivering IP68 waterproof protection against dust, moisture, and submersion up to 1 meter for 30