|
Parameter |
Value |
|
Product Model |
MQ-135 |
|
Gas Detected |
CO₂, NH₃, NOx, alcohol, benzene |
|
Sensor Type |
Semiconductor (SnO₂) |
|
Detection Range |
Wide (varies by gas) |
|
Output Signal |
Analog / Digital (module) |
|
Operating Voltage |
5V |
|
Preheat Time |
≥ 24 hours (recommended) |
|
Response Time |
≤ 30 seconds |
|
Operating Temperature |
-10°C to +50°C |
|
Humidity Range |
15% to 90% RH |
|
Lifespan |
Long |
MQ135 Air Quality Sensor | Gas Sensor for CO2, NH3, NOx Detection
₹2,124.00 Price With Tax
Buy MQ135 Air Quality Sensor for detecting CO₂, NH₃, NOx, and other gases. Ideal for Arduino, IoT, indoor air quality monitoring, and environmental sensing.
Available to Order lead time minimum 5-7 Weeks , Minimum quantity to order 5 pcs.
15 Days Warranty
This product comes with a 15-day warranty starting from the date of delivery. The warranty covers manufacturing defects only. If a defect is confirmed, the item will be replaced.
Warranty will not apply if:
- The product has been misused, dropped, or damaged.
- It has been exposed to water, fire, chemicals, or static discharge.
- It has been tampered with, soldered, or altered in any way.
The MQ-135 Gas Sensor is a versatile semiconductor-based air quality sensor designed to detect a variety of harmful gases such as carbon dioxide (CO₂), ammonia (NH₃), nitrogen oxides (NOx), alcohol, benzene, and smoke.
Built using tin dioxide (SnO₂) sensing material, the MQ-135 offers high sensitivity to multiple gases, making it an excellent choice for indoor air quality monitoring and IoT-based environmental systems.
Key Features
- Detects multiple gases: CO₂, NH₃, NOx, alcohol, benzene, smoke
- Semiconductor (SnO₂) sensing technology
- Analog and digital output (module version)
- Adjustable sensitivity via onboard potentiometer
- Fast response and recovery time
- Cost-effective and widely used sensor
- Long operational life
- Easy integration with microcontrollers
Applications
- Indoor air quality monitoring
- Smart home automation systems
- Air pollution detection systems
- IoT-based environmental monitoring
- Industrial air quality monitoring
- Educational and DIY electronics projects
Benefits
- Multi-gas detection with a single sensor
- Affordable solution for air quality monitoring
- Easy integration with Arduino, ESP32, Raspberry Pi
- Adjustable sensitivity for flexible applications
- Suitable for DIY and IoT projects
Why Choose MQ-135 Sensor?
The MQ-135 is one of the most popular sensors for air quality monitoring, offering multi-gas detection at a low cost. It is ideal for non-critical monitoring applications, especially in smart home and IoT environments.
Installation & Usage
- Power with 5V supply
- Allow preheat time (24 hours recommended)
- Read analog output via ADC or digital output
- Adjust sensitivity using onboard potentiometer
- Calibrate according to target gas
Safety Information
MQ-135 is a general-purpose sensor and not highly selective. For critical safety applications, use specialized sensors.
Packaging Includes
- 1 × MQ-135 Air Quality Gas Sensor (module or bare sensor as per variant)
| Weight | 0.100 kg |
|---|---|
| Dimensions | 12 × 6 × 6 cm |
Only logged in customers who have purchased this product may leave a review.





Reviews
There are no reviews yet.