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    <div class="moz-cite-prefix">Alternatively, remove the battery and
      solder on a pair of wires.  Route the wires out of the wall. 
      Attach battery or other power source as desired.  <br>
      <br>
      That way you won't have any worry about the perforated pipe being
      a conduit for moisture from in the building.<br>
      <br>
      On 11/4/15 2:20 PM, Derek Stearns Roff wrote:<br>
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      Yes, Matts, if this sensor were permanently buried in the wall, it
      would be useless in about a year.  I don’t think this is the
      device that we have been waiting for, but rather, like John the
      Humidity Baptist, it tells us that the time of our moisture
      monitoring savior is coming soon.  But if someone wanted to put it
      in the wall in a perforated pipe with a removable cap, similar to
      a DYI design of 15-20 years ago, then replacing the batteries at
      intervals would work.  
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      <div class="">Derek<br class="">
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            word-spacing: 0px; -webkit-text-stroke-width: 0px; display:
            inline !important; float: none;" class="">Derek Roff</span><br
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            inline !important; float: none;" class=""><a
              moz-do-not-send="true" href="mailto:derek@unm.edu"
              class=""><a class="moz-txt-link-abbreviated" href="mailto:derek@unm.edu">derek@unm.edu</a></a></span><br style="color: rgb(0,
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            <div class="">On Nov 4, 2015, at 11:56 AM, Matts Myhrman
              <<a moz-do-not-send="true"
                href="mailto:mattsmy@gmail.com" class="">mattsmy@gmail.com</a>>
              wrote:</div>
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              <div dir="ltr" class="">Hey Derek, 
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                <div class="">I  have a question regarding the
                  data-logger you describe. If the thing is buried in
                  the wall, would one have to abandon it when the
                  battery runs out?</div>
                <div class=""><br class="">
                </div>
                <div class=""><br class="">
                  <div class="gmail_extra">
                    <div class="gmail_quote">On Mon, Nov 2, 2015 at 4:35
                      PM, Derek Stearns Roff <span dir="ltr" class="">
                        <<a moz-do-not-send="true"
                          href="mailto:derek@unm.edu" target="_blank"
                          class="">derek@unm.edu</a>></span> wrote:<br
                        class="">
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                        <div style="word-wrap:break-word" class="">Those
                          of us who want to monitor the conditions
                          inside our walls have had a variety of
                          options, from home-built to industrial, at a
                          range of prices.  However, finding a system
                          that meets a home builder’s definition of easy
                          and affordable has been elusive.  I just found
                          a product advertised at Lee Valley Tools,
                          which shows that the consumer market is
                          beginning to offer interesting options. 
                          Powered by a CR2032 battery, the device will
                          log data, and transmit it to an iPhone or
                          other iOS device for “up to a year”.
                           Important details are missing, but it looks
                          interesting.  The D2 model costs $159, and
                          measures temperature accurate to 0.5 degrees
                          C, and humidity, accurate to 2%, according to
                          the web page.  The device appears to be about
                          40mm long, 35mm wide, and 13mm thick.  
                          <div class=""><br class="">
                          </div>
                          <div class=""><a moz-do-not-send="true"
href="http://www.leevalley.com/US/wood/page.aspx?p=73503&cat=51&ap=2"
                              target="_blank" class="">http://www.leevalley.com/US/wood/page.aspx?p=73503&cat=51&ap=2</a></div>
                          <div class=""><br class="">
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                          <div class="">Derek<br class="">
                            <div class=""><br class="">
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                                !important;" class="">Derek Roff</span><br
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                              <span style="font-family: Helvetica;
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                                float: none; display: inline
                                !important;" class=""><a
                                  moz-do-not-send="true"
                                  href="mailto:derek@unm.edu"
                                  target="_blank" class=""><a class="moz-txt-link-abbreviated" href="mailto:derek@unm.edu">derek@unm.edu</a></a></span><br
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                      </blockquote>
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      <pre wrap="">_______________________________________________
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    <br>
    <br>
    <pre class="moz-signature" cols="72">-- 
Bill Christensen
<a class="moz-txt-link-freetext" href="http://SustainableSources.com">http://SustainableSources.com</a>
<a class="moz-txt-link-freetext" href="http://LinkedIn.com/in/billc108">http://LinkedIn.com/in/billc108</a></pre>
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