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<title>Template Sensor - Home Assistant</title>
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<meta name="description" content="Instructions how to integrate Template sensors into Home Assistant.">
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<span>Home Assistant</span>
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<li><a href='/getting-started/'>Getting started</a></li>
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<li><a href='/components/'>Components</a></li>
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<li><a href='/cookbook/'>Examples</a></li>
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<li><a href="/developers/">Developers</a></li>
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<header>
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<h1 class="title indent">
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Template Sensor
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</h1>
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</header>
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<hr class="divider">
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<p>The <code>template</code> platform supports sensors which breaks out <code>state_attributes</code> from other entities.</p>
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<p>To enable Template sensors in your installation, add the following to your <code>configuration.yaml</code> file:</p>
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<div class="highlighter-coderay"><div class="CodeRay">
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<div class="code"><pre><span class="comment"># Example configuration.yaml entry</span>
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<span class="key">sensor</span>:
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<span class="key">platform</span>: <span class="string"><span class="content">template</span></span>
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<span class="key">sensors</span>:
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<span class="key">solar_angle</span>:
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<span class="key">value_template</span>: <span class="string"><span class="content">'{{ states.sun.sun.attributes.elevation }}'</span></span>
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<span class="key">friendly_name</span>: <span class="string"><span class="content">'Sun angle'</span></span>
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<span class="key">unit_of_measurement</span>: <span class="string"><span class="content">'degrees'</span></span>
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<span class="key">sunrise</span>:
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<span class="key">value_template</span>: <span class="string"><span class="content">'{{ states.sun.sun.attributes.next_rising }}'</span></span>
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</pre></div>
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</div>
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</div>
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<p>Configuration variables:</p>
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<ul>
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<li><strong>sensors</strong> array (<em>Required</em>): List of your sensors.
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<ul>
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<li><strong>friendly_name</strong> (<em>Optional</em>): Name to use in the Frontend.</li>
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<li><strong>unit_of_measurement</strong> (<em>Optional</em>): Defines the units of measurement of the sensor, if any.</li>
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<li><strong>value_template</strong> (<em>Optional</em>): Defines a <a href="/topics/templating/">template</a> to extract a value from the payload.</li>
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<li><strong>warnings</strong> (<em>Optional</em>): Turn off warnings (useful if the sensor is loaded before devices it depends on).</li>
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<li><strong>entity_id</strong> (<em>Optional</em>): Add a list of entity_ids so the sensor only reacts to state changes of these entities. This will reduce the number of times the sensor will try to update it’s state.</li>
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</ul>
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</li>
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</ul>
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<h2><a class="title-link" name="examples" href="#examples"></a> Examples</h2>
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<p>In this section you find some real life examples of how to use this sensor.</p>
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<h3><a class="title-link" name="sun-angle" href="#sun-angle"></a> Sun angle</h3>
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<p>This example shows the sun angle in the frontend.</p>
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<div class="highlighter-coderay"><div class="CodeRay">
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<div class="code"><pre><span class="key">sensor</span>:
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<span class="key">platform</span>: <span class="string"><span class="content">template</span></span>
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<span class="key">sensors</span>:
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<span class="key">solar_angle</span>:
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<span class="key">value_template</span>: <span class="string"><span class="content">'{{ "%+.1f"|format(states.sun.sun.attributes.elevation) }}'</span></span>
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<span class="key">friendly_name</span>: <span class="string"><span class="content">'Sun Angle'</span></span>
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<span class="key">unit_of_measurement</span>: <span class="string"><span class="content">'°'</span></span>
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</pre></div>
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</div>
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</div>
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<h3><a class="title-link" name="renaming-sensor-output" href="#renaming-sensor-output"></a> Renaming sensor output</h3>
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<p>If you don’t like the wording of a sensor output then the template sensor can help too. Let’s rename the output of the <a href="/components/sun/">Sun component</a> as a simple example:</p>
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<div class="highlighter-coderay"><div class="CodeRay">
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<div class="code"><pre><span class="key">sensor</span>:
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<span class="key">platform</span>: <span class="string"><span class="content">template</span></span>
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<span class="key">sensors</span>:
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<span class="key">sun_state</span>:
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<span class="key">value_template</span>: <span class="string"><span class="content">'{% if is_state("sun.sun", "above_horizon") %}up{% else %}down{% endif %}'</span></span>
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<span class="key">friendly_name</span>: <span class="string"><span class="content">'Sun state'</span></span>
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</pre></div>
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</div>
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</div>
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<p>Processes monitored by the <a href="/components/sensor.systemmonitor/">System Monitor sensor</a> show <code>on</code> or <code>off</code> if they are running or not. This example shows how the output of a monitored <code>glances</code> process can be renamed.</p>
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<div class="highlighter-coderay"><div class="CodeRay">
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<div class="code"><pre><span class="key">sensor</span>:
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<span class="key">platform</span>: <span class="string"><span class="content">template</span></span>
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<span class="key">sensors</span>:
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<span class="key">glances</span>:
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<span class="key">value_template</span>: <span class="string"><span class="content">'{% if is_state("sensor.process_glances", "off") %}not running{% else %}running{% endif %}'</span></span>
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<span class="key">friendly_name</span>: <span class="string"><span class="content">'Glances'</span></span>
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</pre></div>
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</div>
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</div>
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<p>By comparing the details published on the <a href="/topics/templating/">template</a> page the same can be archived with a different approach:</p>
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<div class="highlighter-coderay"><div class="CodeRay">
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<div class="code"><pre><span class="key">value_template</span>: <span class="string"><span class="delimiter">"</span><span class="content">{%if states.sensor.ENTITY_ID.state == 'on' %}running{%elif states.switch.ENTITY_ID.state == 'off' %}not running{% endif %}</span><span class="delimiter">"</span></span>
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</pre></div>
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</div>
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</div>
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<p>The <a href="/components/binary_sensor.template/">Binary template sensor</a> is the one in similar cases if you prefer to see an icon instead of text.</p>
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<h3><a class="title-link" name="multiline-example-with-an-if-test-and-warnings-disabled" href="#multiline-example-with-an-if-test-and-warnings-disabled"></a> Multiline example with an if test (and warnings disabled)</h3>
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<p>This example shows a multiple line template with and if test. It looks at a sensing switch and shows on/off in the frontend. It disables warnings to avoid log messages where the switch it depends on isn’t loaded yet.</p>
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<div class="highlighter-coderay"><div class="CodeRay">
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<div class="code"><pre><span class="key">sensor</span>:
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<span class="key">platform</span>: <span class="string"><span class="content">template</span></span>
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<span class="key">sensors</span>:
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<span class="key">kettle</span>:
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<span class="key">friendly_name</span>: <span class="string"><span class="content">'Kettle'</span></span>
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<span class="key">value_template</span>: <span class="string"><span class="delimiter">>-</span><span class="content">
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{%- if is_state("switch.kettle", "off") %}
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off
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{% elif states.switch.kettle.attributes.kwh < 1000 %}
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standby
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{% elif is_state("switch.kettle", "on") %}
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on
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{% else %}
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failed
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{%- endif %}</span></span>
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<span class="key">warnings</span>: <span class="string"><span class="content">Off</span></span>
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</pre></div>
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</div>
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</div>
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<p>(please note the blank line to close the multi-line template)</p>
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<h3><a class="title-link" name="change-the-unit-of-measurment" href="#change-the-unit-of-measurment"></a> Change the unit of measurment</h3>
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<p>With a template sensor it’s easy to convert given values into others if the unit of measurement don’t fit your needs.</p>
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<div class="highlighter-coderay"><div class="CodeRay">
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<div class="code"><pre><span class="key">sensor</span>:
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<span class="key">platform</span>: <span class="string"><span class="content">template</span></span>
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<span class="key">sensors</span>:
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<span class="key">transmission_down_speed_kbps</span>:
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<span class="key">value_template</span>: <span class="string"><span class="content">'{{ states.sensor.transmission_down_speed.state | multiply(1024) }}'</span></span>
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<span class="key">friendly_name</span>: <span class="string"><span class="content">'Transmission Down Speed'</span></span>
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<span class="key">unit_of_measurement</span>: <span class="string"><span class="content">'kB/s'</span></span>
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<span class="key">transmission_up_speed_kbps</span>:
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<span class="key">value_template</span>: <span class="string"><span class="content">'{{ states.sensor.transmission_up_speed.state | multiply(1024) }}'</span></span>
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<span class="key">friendly_name</span>: <span class="string"><span class="content">'Transmission Up Speed'</span></span>
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<span class="key">unit_of_measurement</span>: <span class="string"><span class="content">'kB/s'</span></span>
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</pre></div>
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</div>
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</div>
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</article>
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</div>
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<aside id="sidebar" class="grid__item one-third lap-one-whole palm-one-whole">
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<div class="grid">
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<section class="aside-module grid__item one-whole lap-one-half">
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<div class='edit-github'><a href='https://github.com/home-assistant/home-assistant.io/tree/master/source/_components/sensor.template.markdown'>Edit this page on GitHub</a></div>
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<div class='brand-logo-container section'>
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</div>
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<div class='section'>
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Introduced in release: 0.12
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</div>
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<div class='section'>
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<h1 class='title delta'>Related components</h1>
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<ul class='divided'>
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<li><a href='/components/binary_sensor.template/'>
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Template Binary Sensor
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</a></li>
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<li><a href='/components/switch.template/'>
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Template switch
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</a></li>
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</ul>
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</div>
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<div class='section'>
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<h1 class="title delta">Category Sensor</h1>
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<ul class='divided'>
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<li>
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<a href='/components/sensor.apcupsd/'>APCUPSd Sensor</a>
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||
</li>
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<li>
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<a href='/components/sensor.bitcoin/'>Bitcoin</a>
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</li>
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<li>
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<a href='/components/sensor.bloomsky/'>BloomSky Sensor</a>
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</li>
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<li>
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<a href='/components/sensor.cpuspeed/'>CPU speed</a>
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</li>
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<li>
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<a href='/components/sensor.command_line/'>Command line Sensor</a>
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</li>
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<li>
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<a href='/components/sensor.dte_energy_bridge/'>DTE Energy Bridge</a>
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</li>
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<li>
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<a href='/components/sensor.deutsche_bahn/'>Deutsche Bahn</a>
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</li>
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<li>
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<a href='/components/sensor.dweet/'>Dweet.io</a>
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</li>
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<li>
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<a href='/components/sensor.ecobee/'>Ecobee Sensor</a>
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</li>
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<li>
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<a href='/components/sensor.efergy/'>Efergy</a>
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</li>
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<li>
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<a href='/components/sensor.eliqonline/'>Eliqonline</a>
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</li>
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<li>
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<a href='/components/sensor.enocean/'>EnOcean Sensor</a>
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</li>
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<li>
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<a href='/components/sensor.fitbit/'>Fitbit</a>
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</li>
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<li>
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<a href='/components/sensor.fixer/'>Fixer.io</a>
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</li>
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<li>
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<a href='/components/sensor.glances/'>Glances</a>
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</li>
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<li>
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<a href='/components/sensor.google_travel_time/'>Google Maps Travel Time</a>
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</li>
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<li>
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<a href='/components/sensor.http/'>HTTP Sensor</a>
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||
</li>
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||
<li>
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||
<a href='/components/sensor.homematic/'>Homematic Sensor</a>
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||
</li>
|
||
<li>
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||
<a href='/components/sensor.imap/'>IMAP Sensor</a>
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||
</li>
|
||
<li>
|
||
<a href='/components/sensor.lastfm/'>Last.fm</a>
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||
</li>
|
||
<li>
|
||
<a href='/components/sensor.loop_energy/'>Loop Energy</a>
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||
</li>
|
||
<li>
|
||
<a href='/components/sensor.mqtt/'>MQTT Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.modbus/'>Modbus Sensor</a>
|
||
</li>
|
||
<li>
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||
<a href='/components/sensor.moldindicator/'>Mold Indicator</a>
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||
</li>
|
||
<li>
|
||
<a href='/components/sensor.mysensors/'>MySensors Sensor</a>
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||
</li>
|
||
<li>
|
||
<a href='/components/sensor.nzbget/'>NZBGet</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.nest/'>Nest Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.neurio_energy/'>Neurio</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.octoprint/'>OctoPrint Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.onewire/'>One wire Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.openexchangerates/'>Open Exchange Rates</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.plex/'>Plex Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.gtfs/'>Public Transit (GTFS)</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.rest/'>RESTful Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.rfxtrx/'>RFXtrx Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.sabnzbd/'>SABnzbd</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.snmp/'>SNMP</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.speedtest/'>Speedtest.net</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.steam_online/'>Steam</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.supervisord/'>Supervisord</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.swiss_hydrological_data/'>Swiss Hydrological Data</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.swiss_public_transport/'>Swiss Public Transport</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.systemmonitor/'>System Monitor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.tcp/'>TCP Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.temper/'>TEMPer Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.tellstick/'>TellStick Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.tellduslive/'>Telldus Live sensor</a>
|
||
</li>
|
||
<li>
|
||
Template Sensor
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.thinkingcleaner/'>Thinking Cleaner sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.time_date/'>Time & Date</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.torque/'>Torque (OBD2)</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.transmission/'>Transmission Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.twitch/'>Twitch</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.uber/'>Uber</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.vera/'>Vera Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.envisalink/'>Vera Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.verisure/'>Verisure Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.wink/'>Wink Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.worldclock/'>Worldclock</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.zwave/'>Z-Wave Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.zigbee/'>ZigBee Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.arest/'>aREST Sensor</a>
|
||
</li>
|
||
<li>
|
||
<a href='/components/sensor.mfi/'>mFi Sensor</a>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</section>
|
||
|
||
</div>
|
||
</aside>
|
||
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||
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|
||
</div>
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<footer>
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<div class="grid">
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<div class="copyright">
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||
<a rel="me" href='https://twitter.com/home_assistant'><i class="icon-twitter"></i></a>
|
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|
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<a rel="me" href='https://plus.google.com/110560654828510104551'><i class="icon-google-plus"></i></a>
|
||
<a rel="me" href='https://github.com/home-assistant/home-assistant'><i class="icon-github"></i></a>
|
||
|
||
<div class="credit">
|
||
Contact us at <a href='mailto:hello@home-assistant.io'>hello@home-assistant.io</a>.<br>
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</div>
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</div>
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</div>
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</div>
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</footer>
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