Apem CG211AP0RC 12VDC Red Capacitive Touch Sensor

LED - Light Emitting Diode - a small light source

DC - Direct Current

Glass - A solid, typically transparent. Brittle and used in windows. The first patent granted in the UK was for Glass.

Interactive - Interaction can take place between a person and a device

Red - One of the three primary colours

robust - An physical or metaphorical object which is well built or hard to destroy

LED - Light Emitting Diode. A bulb that is very efficient at producing light. Often small.

Polycarbonate - A man made chemical where polymers are linked to carbonates

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