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MQ-135 - Air Quality Control Gas Sensor

Winsen Sensor

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Manufacturer Part Number:
₹159.30 inc. GST
₹135.00 ex. GST
₹159.30 inc. GST
₹135.00 ex. GST


Sensitive material of MQ135 gas sensor is SnO2, which with lower conductivity in clean air. When target pollution gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit. MQ135 gas sensor has high sensitivity to ammonia gas, sulfide, benzene series steam, also can monitor smoke and other toxic gases well. It can detect kinds of toxic gases and is a kind of low-cost sensor for kinds of applications.


Technical Specifications

Winsen Sensor
Detection range:
10~1000ppm( ammonia gas, toluene, Hydrogen, smoke)
Standard Encapsulation:
Bakelite, Metal cap
Gas Detection:
ammonia gas, sulfide, benzene series steam
Heater Voltage:
5.0V AC or DC
Loop Voltage:
< 24V DC
Sensor Type:
Load Resistance:
Concentration Slope:
< 0.6(R400ppm/R100ppm H2)
Output Voltage:
2.0V~4.0V (in 400ppm H2)
Rs(in air)/Rs(in 400ppm H2)>5
Tem. Humidity:
20C, 55%+/-5%RH
Target Gas:
Air Quality

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.