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micro almost invisible traffic sensor
Fei C
Fei C May 09, 2013
micro almost invisible traffic sensor

I've seen these sensors...

Often 2
Occasionally 0
Rarely 0
Never 2
What is it? 0
0 Comments     4 Tags
Similar Photos: Skateboard House Wireless Sensor Network Monitors Microclimate in the Forest<br/>http://www.scienceda<wbr/><span class="wbr"></span>ily.com/releases/201<wbr/><span class="wbr"></span>1/05/110519101028.ht<wbr/><span class="wbr"></span>m On my bike ride this morning, I took this picture of pavement sensors under the road that sense when to change the traffic light.

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