Buy gas sensors and dust sensors online in India at Zbotic. Our comprehensive gas sensor range includes MQ-series sensors (MQ-2, MQ-3, MQ-5, MQ-7, MQ-135) for detecting combustible gases, alcohol, carbon monoxide, LPG, methane, and air quality. We also stock PM2.5 particulate matter sensors, CO2 sensors (MH-Z19), formaldehyde sensors, and industrial-grade gas detection modules. Essential for air quality monitoring, safety systems, and environmental IoT applications.
MQ-3 Alcohol Gas Sensor Module
SKU: AI0109 ₹113.28 (₹96.00 + GST)Quick Overview
- Power Requirements: 5VDC @ ~165mA (heater on) / ~60mA (heater off)
- Current Consumption: 150mA
- Digital Output (DO): 0.1V and 5V
- Analog Output (AO): 0.1V – 0.3V (relative to pollution), maximum concentration voltage of about 4V
- Detecting Concentration: 0.05 – 10mg/L Alcohol
MQ 135 Air Quality/Gas Detector Sensor Module For Arduino
SKU: AI0245 ₹143.96 (₹122.00 + GST)Sensitivity to Ammonia, Sulphide and Benzene steam
Sensitive for benzene, alcohol, smoke
Fast response and recovery
Adjustable sensitivity
Signal output indicator
Output voltage boosts along with the concentration of the measured gases increases.
MQ-6 Liquefied Petroleum Isobutane Propane Gas Sensor Module
SKU: AI0105 ₹114.46 (₹97.00 + GST)Quick Overview
- Operating Voltage: 5V DC
- Indication of the signal output
- Dual signal output (analog output, and TTL level output)
- 0 ~ 5V analog output voltage, the higher the concentration, the higher the voltage
- High sensitivity to hydrogen
- Can be resistant to ethanol steam, LPG (petroleum), smoke interference
- Has a long life and reliable stability
- Fast response and recovery characteristics
MQ-5 Methane LPG Liquid Propane Gas Sensor Module
SKU: AI0161 ₹94.40 (₹80.00 + GST)Quick Overview
- Operating Voltage: 5V DC
- High sensitivity to LPG, natural gas, town gas.
- Small sensitivity to alcohol, smoke.
- Stable and long life.
- Simple drive circuit.
- Fast response
MQ135 – Air Quality Gas Sensor
SKU: AI0125High sensitivity to Ammonia, Sulfide and Benzene
Stable and Long Life
Detection Range: 10 – 300 ppm NH3, 10 – 1000 ppm Benzene, 10 – 300 ppm Alcohol
Heater Voltage: 5.0V
Dimensions: 18mm Diameter, 17mm High excluding pins, Pins – 6mm High
Long life and low cost
MQ-4 High Sensitivity Gas Methane (CNG) Detector Sensor Module
SKU: AI0160 ₹86.14 (₹73.00 + GST)Quick Overview
- Detecting range: 300~10000ppm
- Signal output indicator.
- Dual Signal output (analog output and TTL output).
- The TTL output signal is low level, allows us to connect with SCM directly.
- Analog output 0~5V voltage.
- Quick response and recovery.
MQ-9 Carbon Monoxide, Methane and LPG Gas Sensor Module
SKU: AI0163 ₹105.02 (₹89.00 + GST)Good sensitivity to CO/Combustible Gas
High sensitivity to Methane, Propane, and CO
Long life and low cost
Simple drive circuit
Input voltage: DC 5±0.2V
Current Consumption: 150mA
MQ-7 CO Carbon Monoxide Coal Gas Sensor Module
SKU: AI0162Quick Overview
- Operating voltage: DC 5 V.
- The analog output voltage, the higher the concentration the higher the voltage.
- The carbon monoxide detection with better sensitivity.
- With a long service life and reliable stability.
- Rapid response and recovery characteristics.
- Range: 10 to 1000 ppm.
Nova PM Sensor SDS011 High Precision Laser pm2.5 Air Quality Detection Sensor
SKU: AI2549 ₹2,265.60 (₹1,920.00 + GST)QUICK OVERVIEW:
- Measuring output: PM2.5,PM10
- Range: 0.0-999.9 ug/m3
- Power supply voltage: 5V
- Maximum working current: 100mA
- Particle diameter resolution: Less than 0.3um
MQ-137 Ammonia Gas NH3 Sensor Module
SKU: AI2543
QUICK OVERVIEW:
- Product: MQ-137 Ammonia Gas NH3 Sensor Module
- Wide detecting scope
- Fast response (less than 1s)
- High sensitivity( 3%)
- the circuit voltage: DC5V
- Stable and long life
- Operating Voltage is +5V
- Detect/Measure NH3, Ammonia
MH-Z19C NDIR Infrared Carbon Dioxide Sensor Module
SKU: AI7084 ₹3,158.86 (₹2,677.00 + GST)MH-Z19C NDIR Infrared Carbon Dioxide Sensor Module:
- Waterproof and anti-corrosion
- High sensitivity
- Low power consumption
- Excellent stability
- Temperature compensation
- Excellent linear output
- High cycle life
- Anti-water vapour interference
- No poisoning
MQ-136 Hydrogen Sulfide Gas Detection Sensor
SKU: AI3536
QUICK OVERVIEW:
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| arget: | H2S |
| Model: | MQ136 |
| Detection range: | 1-200ppm |
| Detection principle: | Semiconductor |
| Characteristics: | Good sensitivity to H2S |
| Size: | φ19×24.2 |
| Working conditions: | Loop Voltage：5±0.1V Heater Voltage：5±0.1V Heater consumption：≤950mW |
MQ-136-Hydrogen Sulfide Gas Sensor
SKU: AI2542 ₹977.04 (₹828.00 + GST)Quick Overview
- Dual signal output (analog output and TTL level output)
- The TTL output effective signal is low.
- Analog output 0 ~ 5V voltage, the higher the concentration the higher the voltage.
- Good sensitivity to hydrogen sulfide, liquefied gas, natural gas, city gas, and smoke.
- with long service life and reliable stability
- fast response recovery characteristics
PMS7003 Sensor Module PM2.5 Air, Particle Dust Sensor
SKU: AI2574 ₹1,528.10 (₹1,295.00 + GST)QUICK OVERVIEW:
- Range of measurement:0.3~1.0; 1.0~2.5; 2.5~10 Micrometer (um)
- Single Response Time:< 1 Second (s)
- DC Power Supply:Typ:5.0 Min:4.5 Max: 5.5 V
- Working Temperature Range:-10~+60 C
DSM501A PM2.5 Dust Sensor Module for Arduino
SKU: AI2456QUICK OVERBIEW:
| Supply voltage (V) | -0.3 ~+7 |
| Operating supply voltage (V) | 5 |
| Operating current (Max) | 90mA |
| Output mode | PWM pulse width modulation |
| Sensitivity | 15,000 / 283ml |
| Operating Temperature (C) | -10 ~ +65 |
| Storage temperature (C) | -20 ~ +80 |
| Settling time | Approximately 1 minute after the heater is switched on |
MQ-131 Ozone Gas Detector Sensor Module
SKU: AI2541 ₹661.98 (₹561.00 + GST)Fast response characteristics
Mounting holes to facilitate fixed installation
The probe can plug design for easy testing.
Signal light indicates the output
Dual signal output (analog output, and TTL-level output)
TTL output valid signal is low; (low output signal light, can be accessed by the microcontroller IO port)
MQ-131 Ozone Gas Detector Sensor Module WITH BLACK CAP
SKU: AI4276 ₹1,434.88 (₹1,216.00 + GST)MQ-131 Ozone Gas Detector Sensor Module WITH BLACK CAP:
- Fast response characteristics
- Mounting holes to facilitate fixed installation
- The probe can plug design for easy testing.
- Signal light indicates the output
- Dual signal output (analog output, and TTL-level output)
- TTL output valid signal is low; (low output signal light, can be accessed by the microcontroller IO port)
Waveshare MQ-135 Gas Sensor
SKU: AI2055- Power:2.5V ~ 5.0V
- Detecting Range: 10ppm-300ppm NH3 ,10ppm-1000ppm Benzene,10ppm-300ppm Alcohol
- Relative humidity:<95%RH
- Dimension: 40.0mm * 21.0mm
Waveshare Dust Sensor
SKU: AI1493 ₹1,668.52 (₹1,414.00 + GST)
QUICK OVERVIEW:
- Sensitivity : 0.5V/(100μg/m3)
- Measurement range: 500μg/m3
- Power: 2.5V~5.5V
- Operating current : 20mA(max)
Waveshare TVOC (Total Volatile Organic Compounds) Gas Sensor, High Sensitivity, Low Power Consumption, Long Lifespan, Compact Size
SKU: AI7645 ₹944.00 (₹800.00 + GST)Quick Overview:
• Detects: TVOC, CO₂, CH₂O
• Communication: UART
• Features: Sensitive, low power, compact
• Resources: Manual & examples for Raspberry Pi, Arduino, ESP32
Waveshare MQ-3 Gas Sensor
SKU: AI2069 ₹430.70 (₹365.00 + GST)
The sensor determines the concentration of alcohol in the air, the result can be obtained measuring the voltage on the analog output. The system is powered with the voltage from 2.5 V to 5 V. It has a digital and analog output, making it compatible with mostof the commissioning modules including Raspberry Pi and Arduino. The digital output
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Waveshare MQ-7 Gas Sensor
SKU: AI2060
The MQ-7 gas sensor is a gas sensor module that incorporates MQ-7, designed for air quality monitoring. It can be used to measure Carbon Monoxide from Different Types of Gasses, then generate digital signals for triggering air treatment devices. Application : Carbon Monoxide Monitor Features: Sensitive for carbon monoxide Output voltage boosts along with the
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MQ2 Smoke LPG Butane Gas Sensor Module
SKU: AI0033 ₹83.78 (₹71.00 + GST)Quick Overview:
- Operating Voltage is 5V
- Can be used to Measure or detect LPG, Alcohol, Propane, Hydrogen, CO and even methane
- Can be used as a Digital or analog sensor
- The Sensitivity of Digital pin can be varied using the potentiometer
- Long life and low cost
- Simple drive circuit
PM2.5 GP2Y1010AU0F Dust Smoke Particle Sensor
SKU: AI0347 ₹383.50 (₹325.00 + GST)Power supply voltage: DC5 ± 2V
Sensitivity: 0.5V / (0.1mg / m3)
The minimum detection level of particles: 0.8 m
Clean air voltage: 0.9V typ.
Low consumption current (Icc: MAX. 20 mA)
The presence of dust can be detected by the photometry of only one pulse
Enable to distinguish smoke from house dust
MQ-8 Hydrogen Gas Sensor Module H2 Alarm Detection
SKU: AI0331 ₹108.56 (₹92.00 + GST)Using high-quality dual-panel design, with power indicator and TTL signal output instructions.
The switching signal having a DO (TTL) output and analog output AO.
TTL output valid signal is low.
The higher the voltage, the concentration of the analog output voltage is higher.
A hydrogen gas detection with good sensitivity.
Has a long life and reliable stability
MQ-2 Flammable Gas and Smoke Sensor
SKU: AI0741 ₹95.58 (₹81.00 + GST)Quick Overview
- Operating Voltage is +5V
- Can be used to Measure or detect LPG, Alcohol, Propane, Hydrogen, CO, and even methane
- Can be used as a digital or analog sensor
- Long life and low cost
- Simple drive circuit
CO Gas Sensor Detector Carbon Monoxide Poisoning Alarm Detector With LCD Display
SKU: AI0958 ₹434.24 (₹368.00 + GST)
LCD Displayer (optional): 4 digits LCD displayer.
Audibility: 85dB ( at 1m distance ), Frequency 3 – 0.5KHZ.
Standby Current: <50μA.
Alarm Current: <50mA.
Standby Mode: Green Led flashes once every 30 seconds.
Waveshare Laser Sensor
SKU: AI2053 ₹840.16 (₹712.00 + GST)
Diffuse Reflection Laser Sensor Module Laser Ranging Module Obstacle Detection. Signal output indicator, Features boost circuit.Obstacle detection,Pipeline counter,Smart robot,Obstacle-avoiding car. A laser sensor contains a transmitter and a receiver. In the transmitter, there is an oscillating tube can generate a shockwave in a frequency of 180KHz. After amplified by a transistor, the shockwave is applied
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MG811 Air Carbon Dioxide (CO2) Sensor Module
SKU: AI1026 ₹2,345.84 (₹1,988.00 + GST)Quick Overview
- Type: MG-811
- Detection Zone: 0 – 10000ppm
- Characteristic Gas: CO2 (Carbon Dioxide)
MH-Z19B Infrared CO2 Sensor Module for CO2 monitor
SKU: AI2534 ₹2,407.20 (₹2,040.00 + GST)
Measurement Range: 400-5000 ppm
Operating voltage: 3.6 V ~ 5.5V DC
Average current: < 18 mA
High sensitivity, high resolution.
Low energy consumption.
Output mode: UART and PWM wave.
Temperature compensation, excellent linear output.
Good stability and long lifespan.
Anti-interference of water vapor.
MQ-8 Hydrogen Gas Sensor
SKU: AI3535 ₹86.14 (₹73.00 + GST)
QUICK OVERVIEW:
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- High Sensitivity (MQ-8 Sensor)
- Stable and Long Life
- Detection Range: 100 - 10,000 ppm H2 (Hydrogen)
- Heater Voltage: 5.0V
- Dimensions: 18mm Diameter, 17mm High excluding pins, Pins - 6mm High
MP135 Air Pollution Gas Sensor DIP-4
SKU: AI3539 ₹116.82 (₹99.00 + GST)QUICK OVERVIEW:
| Model number | MP135 |
|---|---|
| Item Weight | 1 g |
| Item Weight | 1 Grams |
| Item model number | MP135 |
MQ-214 Methane Sensor Combustible Gas Sensor
SKU: AI3538 ₹106.20 (₹90.00 + GST)
Specification:
Operating Voltage: 4.5V to 5V DC.
High sensitivity to Methane Gas.
Suitable for LPG, LNG, iso-butane, propane, H2.
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MQ-137 Ammonia Gas Detection Sensor
SKU: AI3537 ₹977.04 (₹828.00 + GST)QUICK O VERVIEW:
| Model | MQ137 | ||
| Sensor Type | Semiconductor | ||
| Standard Encapsulation | Bakelite, Metal cap | ||
| Target Gas | Ammonia Gas(NH3) | ||
| Detection range | 5～500ppm NH3 | ||
Waveshare MQ-2 Gas Sensor
SKU: AI2063 ₹366.98 (₹311.00 + GST)
The sensor detects the concentration of LPG, propane and hydrogen in the air, the result can be obtained by measuring the voltage on the analog output. The system is powered with a voltage from 2.5 V to 5 V. It has a digital and analog output, making it compatible with most of the commissioning modules, including Raspberry
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Adafruit SGP30 Air Quality Sensor Breakout – VOC and eCO2 – STEMMA QT / QwiicRoHS Compliant
SKU: AI1780 ₹3,538.82 (₹2,999.00 + GST)
Overview
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- Easy to use
- Color: Black
- SCL – I2C clock pin
- SDA – I2C data pin
- Power Pins: Vin
- Voltage: 3.3V
Adafruit SGP40 Air Quality Sensor Breakout – VOC Index – STEMMA QT/Qwiic
SKU: AI1760 ₹2,358.82 (₹1,999.00 + GST)
Overview
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- Circuit: SGP40
- Supply voltage: 3 V to 5 V
- Communication interface: I2C
- I2C communication interface address: 0x59
- VOC Measuring range: 0 ppm to 1000 ppm
- VOC index value Measuring range: 0 to 500
- Connectors: STEMMA QT / Qwiic
10,000ppm MH-Z16 NDIR CO2 Sensor
SKU: AI0884 ₹5,327.70 (₹4,515.00 + GST)
Operating voltage: 4.5 V to 6 V DC
Measurement of the range from 0-2000 parts per million (PPM)
Resolution of 1 PPM 0-2000 parts per million (PPM)
Accuracy of 200 PPM
A warm – Operating time 3 minutes
Response time <90s
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Winsen ZH06 Laser Dust Sensor
SKU: AI1004 ₹1,652.00 (₹1,400.00 + GST)
Model: ZH06 – I
Test type: PM1.0, PM2.5, PM10
Output: UART, PWM
Working Voltage: 4.9V～5.5V
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Winsen ZC05 Methane Module for Domestic use
SKU: AI1005 ₹571.12 (₹484.00 + GST)
Natural Gas Detector
UART (0 or 3V) output
Working Voltage DC (5±0.1)V
100ppm resolution
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AO-09 Oxygen Sensor
SKU: AI0956 ₹2,478.47 (₹2,100.40 + GST)
Operating Principle: Partial pressure electrochemical
Output: 9 mV to 13 mV in 210 mBar O2
Measurement Range: 0 – 100 Vol.% O2
Response Time: (T 90 ) <15 s
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AO-08 Medical Oxygen Sensor
SKU: AI0955 ₹2,289.20 (₹1,940.00 + GST)
Output 9 mV to 13 mV in 21%O²
Measurement Range 0 – 100 Vol.% O²
Response Time <15 s
Excellent signal stability
Accurate and reliable
No external power supply
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Oxygen Sensor Model AO-03
SKU: AI1008 ₹1,049.00 (₹888.98 + GST)
Output Signal0.1±0.03 mA in Air
Measurement Range 1~25% Vol. O²
Operating Pressure Range: Atmospheric ±20%
Plug-and-play
Quick response
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