GAS and Air Quality Sensor
Buy Gas & Air Quality Sensors Online in India – Reliable Detection Modules for Safety & IoT
DNA Technology, an online electronic component store in India based in Nashik, supplies a comprehensive range of gas and air quality sensors for environmental monitoring, safety systems, and IoT applications. We provide industries, research labs, and embedded developers across India with genuine, performance-tested modules that ensure accurate gas detection and air analysis.
Our sensors are designed to measure the concentration of gases like LPG, CO₂, CO, methane, and smoke while monitoring overall air quality. These modules are ideal for automation systems, air purifiers, and smart home projects.
- ✅ High-accuracy gas & air quality detection sensors
- ✅ Compatible with Arduino, Raspberry Pi & ESP boards
- ✅ Available for LPG, CO₂, CO, smoke & general air quality
- ✅ Fast delivery across India with GST invoice
Explore Our Gas & Air Quality Sensor Range
We stock popular modules including MQ-series sensors (MQ-2, MQ-3, MQ-7, MQ-135), CCS811, and MH-Z19B CO₂ sensors. These sensors provide analog and digital outputs for integration with IoT platforms, safety alarms, and ventilation control systems.
Applications of Gas & Air Quality Sensors
Gas and air quality sensors are widely used in indoor air monitoring, industrial safety systems, environmental control, and IoT automation. They help detect harmful gases, track CO₂ levels, and maintain safe air quality standards in real time.
When you buy gas and air quality sensors online in India, you get authentic and calibrated modules from trusted suppliers — delivered quickly and supported by reliable customer service.
Frequently Asked Questions about Gas & Air Quality Sensors
Q: What types of gas sensors are available?
We offer MQ-series sensors (MQ-2, MQ-3, MQ-7, MQ-135), CCS811, and MH-Z19B modules for detecting gases such as LPG, methane, CO, CO₂, and air pollutants.
Q: Are these sensors suitable for Arduino and IoT projects?
Yes, most modules output analog or I2C signals, making them easy to interface with Arduino, ESP32, and Raspberry Pi boards.
Q: Can I buy single sensors?
Yes, individual sensors and bulk quantities are both available.
Q: Do you provide GST invoices?
Yes, all orders include a GST-compliant invoice from DNA Technology.
Q: What is the average shipping time?
In-stock products are typically shipped within 24 hours, with delivery across India in 2–5 working days.
Q: What if I can’t find a particular gas sensor model?
No worries — simply contact us with your gas type or range requirement, and we’ll help you find the right sensor or equivalent model.
Explore more environmental and safety sensors online in India — all genuine, quality-tested modules ready for fast delivery.
MQ139 Freon Gas Sensor Module for Monitoring
MQ139 Freon Gas Sensor Module for MonitoringMQ139 sensor detects freon gas from 10 ppm to 1000 ppm, ..
Rs.1,412.46 (inc GST)
Rs.1,197.00 + GST
SKU: 1823 | DAB106
Stock: 2
MQ131 Ozone Gas Sensor Module
MQ131 Gas Sensor for Ozone DetectionMQ131 Gas Sensor for monitoring ozone gas concentration with dig..
Rs.970.26 (inc GST)
Rs.822.25 + GST
SKU: 1820 | DAB107
Stock: 5
MQ2 GAS SENSOR
MQ2 GAS SENSORMQ2 Gas Sensor for detecting smoke, LPG, CO, and alcohol with a range of 200 to 10000p..
Rs.116.82 (inc GST) Rs.141.60
Rs.99.00 + GST
SKU: 164 | DAA445
Stock: 1
DFRobot Fermion: MEMS Carbon Monoxide CO Gas Detection Sensor (Breakout, 5-5000ppm)
DFRobot Fermion: MEMS Carbon Monoxide CO Gas Detection Sensor (Breakout, 5-5000ppm)Fermion CO Sensor..
Rs.539.00 (inc GST)
Rs.456.78 + GST
SKU: 10385 | DAJ217
Stock: 2
DFRobot Fermion: H2S Gas Sensor – Hydrogen Sulfide Detector (Breakout, 0.5-50ppm, MEMS, Low Power)
DFRobot Fermion: H2S Gas Sensor – Hydrogen Sulfide Detector (Breakout, 0.5-50ppm, MEMS, Low Power) F..
Rs.932.01 (inc GST)
Rs.789.84 + GST
SKU: 10382 | DAJ214
Stock: 10
DFRobot Fermion: MEMS Methane CH4 Gas Detection Sensor (Breakout, 1-10000ppm)
DFRobot Fermion: MEMS Methane CH4 Gas Detection Sensor (Breakout, 1-10000ppm)MEMS Methane CH4 sensor..
Rs.504.00 (inc GST)
Rs.427.12 + GST
SKU: 10380 | DAJ212
Stock: 7
ASAIR AO-02 OXYGEN SENSOR
ASAIR AO-02 Oxygen Sensor - Electrochemical Gas Sensor ASAIR AO-02 Oxygen Sensor provides accurate ..
Rs.2,087.88 (inc GST)
Rs.1,769.39 + GST
SKU: 9794 | DAI569
Stock: 5
MQ4 GAS SENSOR
MQ4 GAS SENSORMQ4 GAS SENSOR with high sensitivity, fast response time, and analog output.The MQ4 GA..
Rs.175.23 (inc GST)
Rs.148.50 + GST
SKU: 177 | DAA446
Stock: 9
MQ6 LPG GAS SENSOR
MQ6 LPG Gas Sensor for Home and Vehicle SafetyMQ6 LPG Gas Sensor detects LPG leaks with high sensiti..
Rs.113.28 (inc GST)
Rs.96.00 + GST
SKU: 35 | DAA449
Stock: 13
MQ136 Hydrogen Sulfide Gas Sensor Module
MQ136 Hydrogen Sulfide Gas Sensor ModuleMQ136 Gas Sensor for Hydrogen Sulfide detection with digital..
Rs.1,235.91 (inc GST)
Rs.1,047.38 + GST
SKU: 1818 | DAB103
Stock: 10
MQ137 Ammonia Gas Sensor Module for Monitoring
MQ137 Ammonia Gas Sensor Module for MonitoringMQ137 Gas Sensor Module for Ammonia detection with ana..
Rs.1,424.24 (inc GST)
Rs.1,206.98 + GST
SKU: 1819 | DAB104
Stock: 5
SGP30 Gas Sensor TVOC & eCO2
SGP30 Gas Sensor for TVOC and eCO2 Measurement SGP30 Gas Sensor for TVOC & eCO2 with low power consu..
Rs.1,585.92 (inc GST)
Rs.1,344.00 + GST
SKU: 2332 | DAB923
Stock: 2
MG811 C02 Sensor Module
MG811 Carbon Dioxide Gas Sensor ModuleCarbon Dioxide (C02) Gas sensor ModuleThe CO2 sensor are..
Rs.2,449.68 (inc GST)
Rs.2,076.00 + GST
SKU: 2040 | DAB109
Stock: 4
MQ5 GAS SENSOR
MQ5 GAS SENSORMQ5 Gas Sensor detects LPG and natural gas, featuring high sensitivity, fast response,..
Rs.175.23 (inc GST)
Rs.148.50 + GST
SKU: 330 | DAA443
Stock: 7
Winsen ZE03-NH3 GAS Sensor Module
Winsen ZE03-NH3 GAS Sensor ModuleElectrochemical GAS Detection Module ZE03-NH3ZE03-NH3 Gas sensor ca..
Rs.10,736.82 (inc GST)
Rs.9,099.00 + GST
SKU: 1760 | DAK143
Stock: 0
AGS02MA ASAIR TVOC 12C MOS SENSOR
AGS02MA ASAIR TVOC 12C MOS Sensor for Air Quality Monitoring AGS02MA sensor measures VOCs in air, o..
Rs.200.60 (inc GST)
Rs.170.00 + GST
SKU: 7040 | DAH020
Stock: 0
Winsen ZH07 Laser Dust Sensor Module
Winsen ZH07 Laser Dust Sensor Module Winsen ZH07, high-performance sensor for detecting PM2.5 and P..
Rs.1,516.71 (inc GST)
Rs.1,285.35 + GST
SKU: 8999 | DAI072
Stock: 0
DFRobot Fermion: NH3 Gas Sensor – Ammonia Detector (Breakout, 1-300ppm, MEMS, Low Power)
DFRobot Fermion: NH3 Gas Sensor – Ammonia Detector (Breakout, 1-300ppm, MEMS, Low Power)Fermion MEMS..
Rs.879.34 (inc GST)
Rs.745.20 + GST
SKU: 10374 | DAJ206
Stock: 0
Winsen ZE03-H2 GAS Sensor Module
Winsen ZE03-H2 GAS Sensor ModuleElectrochemical Detection Module ZE03-H2ZE03-H2 Gas sensor can be us..
Rs.13,259.66 (inc GST)
Rs.11,237.00 + GST
SKU: 1769 | DAB097
Stock: 0
DFRobot Gravity I2C Oxygen Sensor
DFRobot Gravity I2C High-Precision Oxygen Sensor DFRobot Gravity I2C Oxygen Sensor for precise O₂ d..
Rs.6,552.00 (inc GST)
Rs.5,552.54 + GST






















