MQ135 Air Quality Detector Sensor Module

MQ135 Air Quality Detector Sensor Module MQ-135 gas sensor

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 the 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.

Specifications and features of the MQ135 Air Quality Detector Sensor Module:

1. Air Quality Sensor Module
2. Condition: New
3. Size: 32mm X 22mm X 27mm
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, monitors brightness/contrast settings etc, there could be some slight differences in the color tone of the pictures and the actual item!

For analog and digital output experiments, connect the module to an Arduino UNO R3 only after confirming the 5V supply and input-voltage requirements.

Explore more Arduino sensors available from Robonation Pakistan.

For technical and safe-use guidance, review the official Winsen MQ135 documentation.

Safety note: This module is intended for learning and prototyping. It is cross-sensitive to multiple gases and must not replace calibrated or certified air-quality and gas-safety equipment.