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highway traffic light sensor
Fei C
Fei C May 09, 2013
highway traffic light sensor

I've seen these sensors...

Often 1
Occasionally 1
Rarely 1
Never 0
What is it? 0
0 Comments     3 Tags
Similar Photos: Could this be a sensor? Very basic Technology I know but...I mean, it shares data and even can colect it. Vending Machine not a sensor, but this app significantly improves the quality of life. You can plan your trip using every possible transport.

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