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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
Stock: 15

Elecrow Crowtail PH Sensor 2.0 (CRT14016P)

Elecrow PH Sensor 2.0 Water Quality SensorElecrow Crowtail PH Sensor 2.0 for pH testing in aqueous s..

Rs.1,911.60 (inc GST)
Rs.1,620.00 + GST

SKU: 10910 | DAK010
Stock: 15

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.



SGP30 Gas Sensor TVOC & eCO2

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
Winsen ZE03-CO GAS Sensor Module

Winsen ZE03-CO GAS Sensor Module

Winsen ZE03-CO GAS Sensor ModuleElectrochemical Detection Module ZE03-COZE03-CO Gas sensor can be us..

Rs.4,956.00 (inc GST)
Rs.4,200.00 + GST

SKU: 1762 | DAB101
Stock: 0
Winsen ZE03-O2 GAS Sensor Module

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
MQ-303A Alcohol Gas Sensor Module

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
Sensirion SPS30 Particulate Matter Sensor for Air Quality

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
MQ138 Formaldehyde Gas Detection Sensor Module

MQ138 Formaldehyde Gas Detection Sensor Module

MQ138 Formaldehyde Gas Detection Sensor ModuleMQ138 Sensor for formaldehyde detection, 1-10 ppm rang..

Rs.1,383.03 (inc GST)
Rs.1,172.06 + GST

SKU: 1822 | DAB105
Stock: 5
MQ5 Gas Sensor Module

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
MQ2 Smoke Flammable Gas Sensor Module

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
DFRobot Gravity: Electrochemical Oxygen / O2 Sensor (0-25%Vol, I2C)

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
MQ7 CO Sensor Module

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
MQ135 GAS SENSOR

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
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)

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: 7
Sensirion SCD40 Photoacoustic NDIR CO2 Sensor

Sensirion SCD40 Photoacoustic NDIR CO2 Sensor

Sensirion SCD40 Photoacoustic NDIR CO2 SensorSCD40 CO2 sensor delivers ±(50ppm + 5% m.v.) accuracy f..

Rs.1,536.36 (inc GST)
Rs.1,302.00 + GST

SKU: 10904 | DAK150
Stock: 10
SCD40 GAS SENSOR Module FOR CO2 SENSOR

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
Stock: 15
DFRobot Fermion: MEMS Smoke Detection Sensor - 10-1000ppm Range (Ethanol Compatible, Breakout)

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
Winsen ZE03-SO2 GAS Sensor Module

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
SENSIRION SCD41-D-R2 CO₂ Gas Sensor ( SCD41-D-R2)

SENSIRION SCD41-D-R2 CO₂ Gas Sensor ( SCD41-D-R2)

Sensirion SCD41 Optical CO2 Sensor with Extended RangeSCD41 CO2 Sensor; Measures CO2 from 400 to 500..

Rs.1,980.75 (inc GST)
Rs.1,678.60 + GST

SKU: 10905 | DAK149
Stock: 10
MQ9 Gas Sensor Module

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
MQ-8 Hydrogen Gas Sensor by Manufacturer

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
MQ7 CO SENSOR

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
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