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BTCL Tower in dhaka
Md A
Md A May 06, 2013
BTCL Tower in dhaka

I've seen these sensors...

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Similar Photos: City of Santander - These sensors detect the variation of the magnetic field generated by a car parked on it. Monitors free parking spots. This is safety gate at the platform of Tokyo Metro (main subway in Tokyo).<br/>This gate opens automatically when the train comes. http://www.scoutlond<wbr/><span class="wbr"></span>on.com/2011/11/15/tf<wbr/><span class="wbr"></span>ls-online-countdown-<wbr/><span class="wbr"></span>system-is-live-publi<wbr/><span class="wbr"></span>cised/<br/>Also check this on TFL website. I use it on mobile.

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