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MQ-135 Air Quality & Hazardous Gas Sensor Module for Arduino ESP32
SKU: BBZ-SEGA-015• Only 4 left
₹150₹243.29-38% OFF
Key Highlights
- ✓High sensitivity to ammonia and hazardous gases
- ✓Detects smoke and multiple toxic air pollutants
- ✓Adjustable sensitivity via load resistance
- ✓Stable performance with long service life
- ✓Simple analog output interface
- ✓Low cost and easy to use
- ✓Suitable for continuous air quality monitoring
- ✓Compatible with Arduino and IoT platforms
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Sensor Type
Semiconductor Gas Sensor
Sensitive Material
SnO₂ (Tin Oxide)
Detection Range
10 – 1000 ppm
Detectable Gases
Ammonia, Sulfide gases, Benzene series vapors, Hydrogen, Smoke
Heater Voltage
5.0V AC / DC
Loop Voltage
< 24V DC
Output Voltage
2.0V – 4.0V (at 400 ppm H₂)
Load Resistance
Adjustable
Sensitivity
Rs (in air) / Rs (in 400 ppm H₂) > 5
Concentration Slope
< 0.6 (R400ppm / R100ppm H₂)
Encapsulation
Bakelite base with Metal cap
Operating Humidity
20°C, 55% ± 5% RH