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.
Winsen ZE03-SO2 GAS Sensor Module
Winsen ZE03-SO2 GAS Sensor ModuleElectrochemical Detection Module ZE03-SO2ZE03-SO2 Gas sensor can be..
Rs.13,216.00 (inc GST)
Rs.11,200.00 + GST
SKU: 1764 | DAB100
Stock: 3
MQ9 Gas Sensor Module
MQ9 Gas Sensor ModuleMQ9 sensor module for detecting LPG, CO, and CH4 with high sensitivity and fast..
Rs.195.82 (inc GST)
Rs.165.95 + GST
SKU: 1534 | DAB415
Stock: 0
DFRobot Gravity: Electrochemical Oxygen / O2 Sensor (0-25%Vol, I2C)
DFRobot Gravity: Electrochemical Oxygen / O2 Sensor (0-25%Vol, I2C)DFRobot O2 Sensor measures oxygen..
Rs.5,554.47 (inc GST)
Rs.4,707.18 + GST
SKU: 10350 | DAJ182
Stock: 1
Sensirion SPS30 Particulate Matter Sensor for Air Quality
Sensirion SPS30 Particulate Matter Sensor for Air QualitySPS30 PM2.5 Sensor, Range: 0–1000 µg/m³, pr..
Rs.3,774.82 (inc GST)
Rs.3,199.00 + GST
SKU: 10398 | DAJ506
Stock: 5
DFRobot Fermion: VOC Gas Sensor – Volatile Organic Compounds Detector (Breakout, 1-500ppm, MEMS)
DFRobot Fermion: VOC Gas Sensor – Volatile Organic Compounds Detector (Breakout, 1-500ppm, MEMS) Fer..
Rs.504.00 (inc GST)
Rs.427.12 + GST
SKU: 10381 | DAJ213
Stock: 5
DFRobot Fermion: MEMS Smoke Detection Sensor - 10-1000ppm Range (Ethanol Compatible, Breakout)
DFRobot Fermion: MEMS Smoke Detection Sensor - 10-1000ppm Range (Ethanol Compatible, Breakout)Ultra-..
Rs.539.00 (inc GST)
Rs.456.78 + GST
SKU: 10384 | DAJ216
Stock: 10
MQ2 Smoke Flammable Gas Sensor Module
MQ2 Smoke Flammable Gas Sensor ModuleMQ2 Smoke Sensor Module with analog and digital output, easy to..
Rs.124.61 (inc GST)
Rs.105.60 + GST
SKU: 514 | DAB408
Stock: 23
MQ5 Gas Sensor Module
MQ5 Gas Sensor ModuleMQ5 Gas Sensor Module for detecting Methane, LPG, and natural gas with analog a..
Rs.175.23 (inc GST)
Rs.148.50 + GST
SKU: 517 | DAB411
Stock: 15
MQ135 GAS SENSOR
MQ135 GAS SENSORMQ135 sensor detects NH3, NOx, alcohol, and more with high sensitivity for air quali..
Rs.127.58 (inc GST)
Rs.108.12 + GST
SKU: 183 | DAA448
Stock: 11
SCD40 GAS SENSOR Module FOR CO2 SENSOR
Sensirion SCD40 CO₂ and Environmental Sensor ModuleSCD40 Sensor Module + CO₂, Temperature, Humidity ..
Rs.1,864.40 (inc GST)
Rs.1,580.00 + GST
SKU: 10908 | DAK157
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MQ-303A Alcohol Gas Sensor Module
MQ-303A Alcohol Gas Sensor ModuleMQ-303A sensor detects alcohol with high sensitivity and quick resp..
Rs.295.00 (inc GST)
Rs.250.00 + GST
SKU: 1814 |
Stock: 0
SN-3001-LDO-N01-20 Fluorescence Dissolved Oxygen Sensor
SN-3001-LDO-N01-20 Fluorescence Dissolved Oxygen SensorSN-3001-LDO-N01-20, Fluorescence dissolved ox..
Rs.14,820.00 (inc GST)
Rs.12,559.33 + GST
SKU: 11043 | DAK133
Stock: 0
Winsen ZE03-HCL GAS Sensor Module
Winsen ZE03-HCL GAS Sensor Module Electrochemical Detection Module ZE03-HCLZE03-HCL Gas sensor ..
Rs.13,259.66 (inc GST)
Rs.11,237.00 + GST
SKU: 1768 | DAC952
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Winsen ZE03-CL2 GAS Sensor Module
Winsen ZE03-CL2 GAS Sensor ModuleElectrochemical Detection Module ZE03-CL2ZE03-CL2 Gas sensor can be..
Rs.10,854.82 (inc GST)
Rs.9,199.00 + GST
SKU: 1765 | DAG237
Stock: 0
MICS4514 Gas Sensor Module
MICS4514 Gas Sensor Module MICS-4514 CO & NO2 Gas Sensor Module for pollution detection with robust ..
Rs.3,056.20 (inc GST)
Rs.2,590.00 + GST
SKU: 2330 | DAB921
Stock: 2
DFRobot Fermion: Formaldehyde Sensor (Breakout, 0-3ppm MEMS HCHO Detection, Low Power)
DFRobot Fermion: Formaldehyde Sensor (Breakout, 0-3ppm MEMS HCHO Detection, Low Power)Fermion HCHO S..
Rs.605.00 (inc GST)
Rs.512.71 + GST
SKU: 10383 | DAJ215
Stock: 0
Winsen MQ138 VOC Gas Sensor
Winsen MQ138 VOC Gas SensorWinsen MQ138 sensor for IAQ monitoring, high sensitivity to VOCs, detect..
Rs.2,530.12 (inc GST)
Rs.2,144.17 + GST
SKU: 10415 | DAJ355
Stock: 0
Methyl mercaptan (CH3SH) sensor Module
Methyl mercaptan (CH3SH) sensor ModuleOizom Methyl Mercaptan Sensor Module for accurate CH3SH detect..
Rs.17,639.24 (inc GST)
Rs.14,948.51 + GST
SKU: 10400 | DAJ340
Stock: 0
SCD41 GAS SENSOR Module FOR CO2 SENSOR
Sensirion SCD41 Gas Sensor Module for CO₂ DetectionSCD41 Module for CO₂ detection + temperature + hu..
Rs.2,336.40 (inc GST)
Rs.1,980.00 + GST
SKU: 10909 | DAK158
Stock: 0
Winsen ZE03-H2S GAS Sensor Module
Winsen ZE03-H2S GAS Sensor Module Electrochemical Detection Module ZE03-H2SZE03-H2S Gas sensor ..
Rs.11,267.82 (inc GST)
Rs.9,549.00 + GST






















