View source for Ks0043 keyestudio MQ-5 Gas Sensor


<br>
==Introduction==
The gas sensitive material used in MQ-5 gas sensor is SnO2, which is of lower electrical conductivity in clean air. <br>
When there is combustible gas in the environment where sensor resides, the electrical conductivity of the sensor increases with the increase of the combustible gas concentration in the air. <br>
The change of electrical conductivity can be converted to the output signal corresponding to that of the gas concentration by using a simple circuit. <br>
The sensitivity of MQ-5 gas sensor to propane, propane and methane is quite high, and the methane and propane can be well detected. <br>
This sensor can detect a variety of combustible gases, especially natural gas, making it a low-cost sensor for a variety of applications.<br>
<br>[[File:Ks0043.jpg|500px|frameless|thumb]]<br>

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==Feature==
It has high sensitivity to liquefied gas, natural ga`s and city gas, almost no response to ethanol or smoke, which makes it excellent in anti-alcohol and anti- smoke interference.

<br>
==Specification==
*Heating Voltage (VH): AC or DC 5±0.5V
*Operating voltage: 5V 
*Load Resistance (RL): 2KΩ
*Resistance in Cleaning Air (Ra): ≤4000KΩ
*Sensitivity (S=Ra/Rdg): ≥4(in 1000ppmC4H10)
*Response Time (tres): ≤ 10S
*Recovery Time (TREC): ≤ 30S
*Detection Range: 50-10000ppm

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==Connection Diagram ==
<br>[[File:Ks0042-2.png|700px|frameless|thumb]]<br> 

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==Sample Code ==

<pre>
/*
  AnalogReadSerial
 Reads an analog input on pin 0, prints the result to the serial monitor 
 
 This example code is in the public domain.
 */

void setup() {
  Serial.begin(9600);
}

void loop() {
  int sensorValue = analogRead(A0);
  Serial.println(sensorValue, DEC);
}
</pre>

<br>
== Result ==
<br>[[File:453.png|500px|frameless|thumb]]<br>  

<span style=color:red> Note: The above screenshot data is only for reference   <br>

<br>

==Resources ==

* '''Video'''<br>
http://video.keyestudio.com/ks0040/

* '''PDF and Code'''<br>
https://fs.keyestudio.com/KS0043


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==Buy from ==

*[https://www.keyestudio.com/free-shipping-keyestudio-mq-5-lpg-gas-city-gas-sensor-module-for-arduino-p0119.html   '''Official Website''']

*[https://www.aliexpress.com/store/product/Free-shipping-MQ-5-gas-methane-sensor-for-arduino/1452162_32316629211.html?spm=2114.12010612.8148356.43.59aa74983nH3cH   '''Shop on aliexpress''']


[[Category: Sensor]]