Mq-3 Gas Sensor

<p>Product Description:</p>
<ul>
<li>Mainly suitable for alcohol steam</li>
<li>The analog output voltage increases with the increase in gas concentration in the detection environment</li>
<li>Quick response recovery characteristics</li>
<li>Sensitivity</li>
<li>Signal output indication</li>
</ul>
<p>Product parameters:</p>
<ul>
<li>Working voltage: 2.5V ~ 5.0V</li>
<li>Product size: 40.0mm * 21.0mm</li>
<li>Fixed hole size: 2.0mm</li>
</ul>
<p>The main purpose:</p>
<ul>
<li>Vehicle alcohol gas alarm and portable wine essence gas detector, etc.</li>
</ul>
<p>Interface description: (take access MCU as an example)</p>
<ul>
<li>VCC: Connect 2.5V ~ 5.0V</li>
<li>GND: connected GND</li>
<li>AOUT: connected mcu.io (Simulation output)</li>
<li>DOUT: connected mcu.io (Digital output)</li>
</ul>
<h3>product model</h3>
<p>Applicable situation application case application case</p>
<table>
<tbody>
<tr>
<td>MQ-135 Gas Sensor</td>
<td>Ammonia gas, nitrogen oxidation compounds, alcohols, aroma compounds, sulfides, etc.</td>
<td>Factory harmful gas detection device</td>
</tr>
<tr>
<td>MQ-2 Gas Sensor</td>
<td>LNG, propane, and hydrogen</td>
<td>Gas leakage detection device of family or factories</td>
</tr>
<tr>
<td>MQ-3 Gas Sensor</td>
<td>Alcohol steam</td>
<td>Vehicle alcohol gas alarm and portable wine essence gas detector, etc.</td>
</tr>
<tr>
<td>MQ-5 Gas Sensor</td>
<td>LNG, natural gas, gas, etc.</td>
<td>The monitoring device of liquefied gas, natural gas, and gas in the family or industry</td>
</tr>
<tr>
<td>MQ-7 Gas Sensor</td>
<td>Carbon dioxide gas</td>
<td>Industrial gas leakage alarm and portable gas detector, etc.</td>
</tr>
</tbody>
</table>
<h3>Download</h3>
<p><img src="https://img.alicdn.com/imgextra/i2/740676578/T2nneEXyRaXXXXXXXX_!!740676578.jpg_.webp" alt="i2mSj/ukz9QsY8Tz6e2YZapUmaN9zlE6wWKr" /></p>