<div class="productInfo" style="box-sizing: border-box; padding: 0px 15px; color: #333333; font-size: 14px; background-color: #ffffff;"><b style="box-sizing: border-box; font-size: 20px; color: #000000; border-bottom: 1px solid rgb(237, 106, 1); padding-bottom: 5px;"><a href="https://www.dfrobot.com/product-2417.html" target="_blank" style="box-sizing: border-box; background-color: transparent; color: #000000; text-decoration-line: none;">SKU:SEN0377</a></b></div>
<article class="panel-body markdown-body" id="top" style="box-sizing: border-box; padding: 15px; text-size-adjust: 100%; color: #24292e; font-family: -apple-system, BlinkMacSystemFont, &quot;Segoe UI&quot;, Helvetica, Arial, sans-serif, &quot;Apple Color Emoji&quot;, &quot;Segoe UI Emoji&quot;, &quot;Segoe UI Symbol&quot;; font-size: 16px; line-height: 1.5; overflow-wrap: break-word; background-color: #ffffff;">
   <p style="box-sizing: border-box; margin-bottom: 16px;"><a href="https://www.dfrobot.com/product-2417.html" style="box-sizing: border-box; background-color: transparent; color: #0366d6; text-decoration-line: none;" target="_blank"><img src="https://img.dfrobot.com.cn/wiki/5b973267c87e6f19943ab3ad/d761c99fd7e7bae1cddeb40f2b7ec265.jpg" width="300" hegiht="" align="right/" style="box-sizing: content-box; border: 0px none; vertical-align: middle; max-width: 100%;" /></a></p>
   <h2 id="target_0" style="box-sizing: border-box; font-family: inherit; line-height: 1.25; color: inherit; margin-top: -60px; margin-bottom: 16px; padding-bottom: 0.3em; border-bottom: 1px solid rgb(234, 236, 239); padding-top: 60px;">Introduction</h2>
   <p style="box-sizing: border-box; margin-bottom: 16px;">This is a 3.3/5V compatible MEMS gas concentration sensor from DFRobot. This sensor supports the detection of various gas concentrations like CO, C2H5OH (Alcohol), H2, NO2, NH3, and integrates various gas concentration conversion formulas in the code to facilitate the testing and use of sensors. With I2C output and 3.3~5.5V wide voltage input, it is compatible with Arduino, ESP32, Raspberry Pi and other mainstream controllers.</p>
   <h2 id="target_1" style="box-sizing: border-box; font-family: inherit; line-height: 1.25; color: inherit; margin-top: -60px; margin-bottom: 16px; padding-bottom: 0.3em; border-bottom: 1px solid rgb(234, 236, 239); padding-top: 60px;">Features</h2>
   <ul style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; padding-left: 2em;">
      <li style="box-sizing: border-box;">Support detection of a variety of harmful gas</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Integrate the calculation formulas of various gas concentration</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Low power consumption</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">I2C digital output</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Compatible with the 3.3~5.5V master controller</li>
      </ul>
   <h2 id="target_2" style="box-sizing: border-box; font-family: inherit; line-height: 1.25; color: inherit; margin-top: -60px; margin-bottom: 16px; padding-bottom: 0.3em; border-bottom: 1px solid rgb(234, 236, 239); padding-top: 60px;">Specification</h2>
   <ul style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; padding-left: 2em;">
      <li style="box-sizing: border-box;">Detection of Physical Quantities: gas concentration of CO，C2H5OH(Alcohol), H2, NO2, NH3, CH4</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Operating Voltage: 3.3～5.5V DC</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Power Dissipation: 0.45W（5V）</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Output Signal: I2C（0~3V）</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Measuring Range:
         <ul style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; padding-left: 2em;">
            <li style="box-sizing: border-box;">1 – 1000ppm(Carbon monoxide CO )</li>
            <li style="box-sizing: border-box; margin-top: 0.25em;">0.05 – 10ppm(Nitrogen dioxide NO2 )</li>
            <li style="box-sizing: border-box; margin-top: 0.25em;">10 – 500ppm( Ethanol C2H5OH )</li>
            <li style="box-sizing: border-box; margin-top: 0.25em;">1 – 1000ppm(Hydrogen H2)</li>
            <li style="box-sizing: border-box; margin-top: 0.25em;">1 – 500ppm(Ammonia NH3 )</li>
            <li style="box-sizing: border-box; margin-top: 0.25em;">&gt;1000ppm(Methane CH4 )</li>
            </ul>
         </li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Working Temperature: -30～85℃</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Working Humidity: 5～95%RH （No condensation）</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Storage Temperature: -40~85℃</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Lifespan: &gt;2 years （in the air）</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Circuit Board Size: 27mm*37mm</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Mounting Hole Size: inner diameter 3.1mm/outer diameter 6mm</li>
      <li style="box-sizing: border-box; margin-top: 0.25em;">Weight：</li>
      </ul>
   </article>