Arduino MQ135 Air Quality Detector Sensor Module

Detect harmful gas with this Arduino sensor

SKU: TA0182

RRP $14.95
In Stock

Buy In Bulk & Save!
Buy 4 to 10: Pay $7.26 ea
Buy 11 to 20: Pay $6.90 ea
Buy 21 to 100: Pay $6.55 ea

Calculate Shipping

This Air quality detector module uses an MQ135 sensor which utilises SnO2 as its gas sensitive material. SnO2 has low electrical conductivity with clean air. So when surrounded by polluted air, the electrical conductivity of MQ135 will increase and thus changing the electrical conductivity which is converted to corresponding output signal.  


MQ135 has a high sensitivity to Ammonia, sulfide,  benzene vapor, smoke and other harmful gas. It can detect various harmful gases, making it a cost-effective choice suitable for multiple applications.




Product type: Semiconductor gas sensor

Target gas: Ammonia; methylbenzene; hydrogen

Standard circuit: Loop voltage  Vc ≤24V  DC

Heater voltage: VH 5.0V±0.2V AC or DC

Load resistance: Adjustable RL

Features of sensitive components under standard test condition: Heating resistor RH 31Ω±3Ω (room temperature)

Heater power consumption: PH ≤900mW

Surface resistance of sensitive material: Rs 2KΩ-20KΩ(in 100ppm NH3)

Sensitivity: S Rs(in air)/Rs(100ppmNH3)≥5

Concentration slope: α ≤0.6(R100ppm/R50ppm NH3)

Standard testing temperature/humidity : 20 Centigrade±2 Centigrade/65%±5%RH

Standard testing circuit: Vc:5.0V±0.1V

VH: 5.0V±0.1V

Preheating time: 48H

SKU TA0182
Barcode # 9351634003679
Brand iduino
Shipping Weight 0.1000kg
Shipping Width 0.100m
Shipping Height 0.030m
Shipping Length 0.180m
Shipping Cubic 0.000540m3
Unit Of Measure ea

Be The First To Review This Product!

Help other Aus Electronics Direct users shop smarter by writing reviews for products you have purchased.

Write a product review

We Also Recommend

You May Also Like

Others Also Bought

More From This Category