What type of sensor should I use in this scenario?

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    shoestringties
    Aug 07 2013 | 8:35 am

    • LSka's icon
      LSka
      Aug 07 2013 | 8:56 am
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    • Wetterberg's icon
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      Wetterberg
      Aug 07 2013 | 11:42 am
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      yaniki
      Aug 07 2013 | 1:00 pm