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If i put up an infrared CCTV system, can people outside see it?

If i put up an infrared CCTV system, can people outside see either a light beam, or the LED's? If for example, i wanted to put night vision CCTV inside, would i be able to see the red LED's glowing? as i have seen night vision CCTV with red LED's around the lens.

You will see the red LED glowing when you look at it directly by the camera and you have to be pretty close to see it. Infrared light itself is not visible to naked eye and is only used to increase in-the-dark visibility without using visible light source. People will not see the light beam but may see the LEDs if they get close enough.

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