MQ135 Gas Sensor Price in Pakistan

The MQ 135 Air Quality Detector Sensor Module For Arduino has lower conductivity in clean air. When the target combustible gas exists, the conductivity of the sensor is higher along with the gas concentration rising. Convert change of conductivity to the corresponding output signal of gas concentration. The MQ135 Gas Sensor has high sensitivity to Ammonia, Sulphide and Benzene steam, also sensitive to smoke and other harmful gases. It is with low cost and suitable for different applications such as harmful gases/smoke detection.

if there is digital logic output is LOW it means there is no gas is detected. but if there is gas detected than the output logic is HIGH.  On the other hand, When the hazardous gas concentration in the environment reaches the set threshold via a potentiometer on the module. then the analog level output provides an output voltage within the range of 0 to 4 Volts based on the concentration of the hazardous gas in the environment. if the concentration is lowest then the volts are 0. if the concentration is maximum then volts will be 4. by this module we can detect hazardous gases such as Ammonia, Nitrogen Oxide, Alcohol, Benzene, Smoke (Carbon Monoxide), Carbon Dioxide and other air contaminants in your DIY projects. all types of gas sensors are available at pakluck.com.

Calibration:  As a resistance between the sensor output and the earth determines the degree of sensitivity of the MQ-135, then the resistance load must be adjusted with the potentiometer present on the module board for its particular application, taking as base the datasheet equations. Thus, as soon as the sensor detects the presence of any gas, it is possible to record a change in this resistance, allowing to measure the voltage level on the AOUT pin, which can vary between 0V to 5V. And based on the response time of the sensor can be taken preventive measures quickly.

Connections:  The sensor module can be connected to the Arduino by connecting the positive pin (VCC) on the 5V, the negative pin (GND) on the GND and the pin AOUT on an analog pin, such as A0. reading of the analog signal of this pin and follow that reading through the Serial Monitor of the Arduino IDE

Specifications and features :

1. Air Quality Sensor Module
2. Condition: New
3. Size: 32mm X22mm X27mm
4. Main chip: MQ-135
5. Operating Voltage: 5V DC
6. Type: Analog & Digital
7. Sensitivity to Ammonia, Sulphide and Benzene steam
8. Detecting Range: 100-1000ppm
9. With signal output instructions
10. TTL output signal is low level
11. Analog 0 ~ 5 v voltage output, the higher the concentration, the higher the voltage
12. Color is showing pictures.
13. Sensitive for benzene, alcohol, smoke
14. Fast response and recovery
15. Adjustable sensitivity
16. Signal output indicator
17. Output voltage boosts along with the concentration of the measured gases increases
18. Please NOTE: that due to lighting effects, monitor’s brightness/contrast settings etc, there could be some slight differences in the color tone of the pictures and the actual item!

Package Includes :

• 1 x MQ135 Air Quality Sensor Module.