<OTMultiDataGraph rows="2" columns="1">
  <graphs>
  <OTDataCollector name="Rel Hum C">
    <source>
      <OTDataGraphable connectPoints="true" color="0x0000ff" drawMarks="false" name="Humidity" xColumn="0" yColumn="1">
        <dataProducer>
          <OTSensorDataProxy local_id="rel_humidity_light_dp">
            <name>Relative Humidity and Light</name>
            <request>
              <OTExperimentRequest period="10">
                <sensorRequests>
                  <OTSensorRequest type="7" stepSize="1.0" displayPrecision="0" port="0" unit="percentage" requiredMax="100" requiredMin="0"/>
                  <OTSensorRequest type="2" stepSize="1.0" displayPrecision="0" port="0" unit="lux" requiredMax="800" requiredMin="100"/>
                </sensorRequests>
              </OTExperimentRequest>
            </request>
          </OTSensorDataProxy>
        </dataProducer>
        <dataStore>
          <OTDataStore local_id="data_set"/>
        </dataStore>
      </OTDataGraphable>
    </source>
    <xDataAxis >
      <OTDataAxis local_id="xaxis" min="0" max="600" label="Time" units="s"/>
    </xDataAxis>
    <yDataAxis>
      <OTDataAxis min="0" max="100" label="Relative Humidity" units=""/>
    </yDataAxis>
  </OTDataCollector>
  <OTDataCollector name="Light B">
    <source>
      <OTDataGraphable connectPoints="true" color="0x0000ff" drawMarks="false" name="Light" xColumn="0" yColumn="2">
        <dataStore refid="${data_set}"/>
      </OTDataGraphable>
    </source>
    <xDataAxis refid="${xaxis}" />
    <yDataAxis>
      <OTDataAxis min="0" max="800" label="Light level" units="lx"/>
    </yDataAxis>
  </OTDataCollector>
  </graphs>
</OTMultiDataGraph>