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Bangalore
MS R
MS R May 04, 2013
Bangalore

I've seen these sensors...

Often 3
Occasionally 0
Rarely 1
Never 3
What is it? 0
3 Comments     7 Tags
Similar Photos: Source: meetingpointbyono.co<wbr/><span class="wbr"></span>m Motion sensors track crowd density at Canal Park in Washington D.C. and glows brighter when more people are present. I think these are at every airport now in the states.

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