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.
GAS and Air Quality Sensor products
Winsen ZE03-O2 GAS Sensor Module
Winsen ZE03-O2 GAS Sensor ModuleElectrochemical GAS Detection Module ZE03-O2ZE03-O2 Gas sensor can b..
Rs.6,726.00 (inc GST)
Rs.5,700.00 + GST
SKU: 1759 | DAB098
Stock: 0
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
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
Sensirion SCD40-D-R2 Photoacoustic NDIR CO2 Sensor
Sensirion SCD40-D-R2 Photoacoustic NDIR CO2 Sensor SCD40-D-R2 photoacoustic NDIR CO2 sensor with I²C..
Rs.1,536.36 (inc GST)
Rs.1,302.00 + GST
SKU: 10904 | DAK150
Stock: 10
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: 4
MQ-8 Hydrogen Gas Sensor by Manufacturer
MQ-8 Hydrogen Gas Sensor by ManufacturerMQ-8 sensor detects hydrogen gas with high sensitivity and a..
Rs.190.57 (inc GST)
Rs.161.50 + GST
SKU: 1815 | DAA450
Stock: 5
SCD40 CO₂, Temperature and Humidity Environmental Sensor Module
SCD40 CO₂, Temperature and Humidity Environmental Sensor Module SCD40 sensor module measures CO₂, te..
Rs.1,864.40 (inc GST)
Rs.1,580.00 + GST
SKU: 10908 | DAK157
Stock: 14
MQ7 CO Sensor Module
GAS MQ7 Carbon Monoxide Sensor ModuleMQ7 Gas Sensor Module for Carbon Monoxide detection with analog..
Rs.130.98 (inc GST)
Rs.111.00 + GST
SKU: 940 | DAB413
Stock: 5
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: 5
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
MQ7 CO SENSOR
MQ7 Carbon Monoxide Gas Sensor MQ7 sensor measures Carbon Monoxide from 20 to 2000 ppm with high sen..
Rs.141.60 (inc GST)
Rs.120.00 + GST
SKU: 34 | DAA444
Stock: 21
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
Sensirion SCD41-D-R2 Optical CO₂ Gas Sensor with Temperature and Humidity
Sensirion SCD41-D-R2 Optical CO₂ Gas Sensor with Temperature and Humidity SCD41-D-R2 optical CO₂ sen..
Rs.1,980.75 (inc GST)
Rs.1,678.60 + GST
SKU: 10905 | DAK149
Stock: 10
MG812 Mini Size Solid Electrolyte CO2 Gas Sensor
MG812 Mini Size Solid Electrolyte CO2 Gas SensorMG812 CO2 Sensor for detecting carbon dioxide; Mini ..
Rs.1,378.30 (inc GST)
Rs.1,168.05 + GST
SKU: 10953 | DAK251
Stock: 5
MQ138 Formaldehyde Gas Detection Sensor Module
MQ138 Formaldehyde Gas Detection Sensor ModuleMQ138 Sensor for formaldehyde detection, 1-10 ppm rang..
Rs.1,383.04 (inc GST)
Rs.1,172.07 + GST
SKU: 1822 | DAB105
Stock: 3
Sensirion SPS30 Particulate Matter Sensor for Air Quality
Sensirion SPS30 Particulate Matter Sensor for Air Quality SPS30 laser-scattering particulate matter ..
Rs.3,656.82 (inc GST)
Rs.3,099.00 + GST
SKU: 10398 | DAJ506
Stock: 20
ASAIR AO-09 Oxygen Sensor Module
ASAIR AO-09 Oxygen Sensor ModuleASAIR AO-09 Oxygen Sensor Module for accurate oxygen detection, low ..
Rs.3,647.38 (inc GST)
Rs.3,091.00 + GST
SKU: 11014 | DAK341
Stock: 5
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
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