genbots
−20%MQ135 Air Quality Sensor
The GenBots MQ-135 Gas Sensor Module is an essential component for environmental air quality monitoring stations and smart home HVAC systems. Using a micro-tin dioxide (SnO2) sensing element, its electrical conductivity increases with higher concentrations of target gases including Ammonia (NH3), Nitrogen Oxides (NOx), Alcohol, Benzene, Smoke, and CO2. Offers both analog output (AO) for precise concentration readings and digital threshold output (DO) via an onboard LM393 comparator.
Technical Specifications & Build
SKU: GEN-SEN-1-30- Processor / Controller:
- SnO2 Sensing Core with LM393 High-Precision Comparator
- Material / Construction:
- Dual Stainless Steel Explosion-Proof Mesh & Bakelite Housing
- Detection Range:
- 10 - 1000 ppm (Ammonia, Benzene, Alcohol, Smoke, CO2)
- Operating Voltage:
- 5.0V DC ± 0.1V
- Weight:
- 16g
- Dimensions:
- 32 x 20 x 22 mm
- Output Types:
- Analog Output (AO: 0V - 5V) & Digital Output (DO: TTL Level)
- Package Contents:
- 1x MQ-135 Air Quality Gas Sensor Module
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Community Verified Hardware
Tested by GenBots in Sonipat labs for accurate voltage tolerances, breadboard fit, and reliable code execution.