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Gas Sensors

MQ-2, Gas Sensor Module
Product Brochure
Model / Part Number | MQ-2 |
Target gases | LPG,Propane and Hydrogen |
Operating Voltage | 5V |
Operating Humidity | 0-95%RH |
Preheat Duration | Over 48 hours |
Heater Voltage | 5.0V+-0.2V |
Heater Resistance | 31 ohm +-3 ohm |
Description
The analog gas sensor - MQ2 is used in gas leakage detecting equipments in consumer and industry markets, this sensor is suitable for detecting LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke.It has a high sensitivity and fast response time.And the sensitivity can be adjusted by the potentiometer.
Features
- Power supply needs 5V
- Interface type Analog
- Pin Definition 1-Output 2-GND 3-VCC
- Wide detecting scope
- Fast response and High sensitivity
- Simple drive circuit
- Stable and long life
MQ-6, LPG Gas Sensor
Product Brochure
Model / Part Number | MQ-6 |
Target gases | LPG,iso-butane,propane |
Operating Voltage | 5V |
Response Time | Very Fast -10s |
Preheat Duration | Over 24 hour |
Operating Temperature | 10dg-50dg C |
Power Consumption | 150ma At 5v |
Detection Range | 100-10,000 Ppm |
Sensitivity | High |
Product Details
Operating Temperature | 10dg-50dg C |
Power Consumption | 150ma At 5v |
Detection Range | 100-10,000 Ppm |
Response time | Very Fast -10s |
Sensitivity | High |
Heater voltage | 5V |
Diameter | 18 Mm |
Pins | 6mm High |
TheMQ-6 LPG - Isobutane - Propane Gas Sensoris a semiconductor gas sensor that detects the presence of LPG, Isobutane, and Propane gas at concentrations from 300 ppm to 10,000 ppm, a range suitable for detecting gas leaks. The sensor's simple analog voltage interface requires only one analog input pin from your microcontroller.The MQ-6 LPG - Isobutane - Propane Gas Sensor detects the concentration of gas in the air and outputs its reading as an analog voltage. The concentration sensing range of 300 ppm to 10,000 ppm is suitable for leak detection. The sensor can operate at temperatures from -10 to 50 DegreeC and consumes less than 150 mA at 5 V.
LPG Gas Sensor (MQ6) Features
- High Sensitivity to LPG, iso-butane, propane
- Small sensitivity to alcohol, smoke
- Detection Range 100 - 10,000 ppm iso-butane propane
- Fast Response Time <10s
- Simple drive circuit
- Heater Voltage 5.0V
- Dimensions 18mm Diameter, 17mm High excluding pins, Pins - 6mm High
MQ-5, LPG Gas Sensors
Product Brochure
Product Details
Display Type | Analog |
Sensitivity | High Sensitivity To LPG, Natural Gas, Town Gas |
Heater voltage | 5.0 V |
Diameter | 18 Mm |
High Excluding pins | 17 Mm |
Pins | 6mm High |
We are instrumental in presenting qualitativeLPG & Natural GAS Sensor MQ5which ensures optimum safety and security in the industries and domestic sector. These easy to install are highly suitable for detecting the presence of natural gas, LPG, fumes, smoke and town gas. The sensor in this system is highly reliable and is provided with a simple drive circuit for facilitating easy operations.
Features
- High sensitivity to LPG, natural gas , town gas
- Small sensitivity to alcohol, smoke.
- Fast response .
- Stable and long life
- Simple drive circuit
- Heater Voltage 5.0V
- Dimensions
MQ-2, Flammable Gas and Smoke Sensor
Product Brochure
Gas Sensor(MQ2)module is useful for gas leakage detecting(in home and industry). It can detect LPG, i-butane, methane, alcohol, Hydrogen, somke and so on. Based on its fast response time. measurements can be taken as soon as possible. Also the sensitivity can be adjusted by the potentiometer.
MQ-2 Semiconductor Sensor for Combustible Gas
- Sensitive material of MQ-2 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensors conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.
- MQ-2 gas sensor has high sensitity to LPG, Propane and Hydrogen, also could be used to Methane and other combustible steam, it is with low cost and suitable for different application.
MQ-3, Alcohol Gas Sensor
Minimum Order Quantity: 01 Piece
Product Brochure
Model / Part Number | MQ-3 |
Target gases | alcohol |
Operating Voltage | 5V |
Operating Humidity | 0-95%RH |
Preheat Duration | Over 24 hour |
Circuit voltage | 5V+-0.1 |
Load resistance | 200K ohm |
Heater resistance | 33 ohm +-5% |
Description
ThisAlcohol Sensor MQ3is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It has a high sensitivity and fast response time. Sensor provides an analog resistive output based on alcohol concentration. The drive circuit is very simple, all it needs is one resistor. A simple interface could be a 0-3.3V ADC.
Features
- 5V DC or AC circuit
- Requires heater voltage
- Operation Temperature -10 to 70 degrees C
- Heater consumption less than 750mW
MQ-3, Alcohol GAS Sensor Module
Minimum Order Quantity: 01 Piece
Product Brochure
Model / Part Number | MQ-3 |
Target gases | alcohol |
Operating Voltage | 5V |
Operating Humidity | 0-95%RH |
Preheat Duration | Over 24 hour |
Circuit voltage | 5V+-0.1 |
Load resistance | 200K ohm |
Heater resistance | 33 ohm +-5% |
MQ3 GAS Sensor is a very easy to use and very handy sensor. It is suitable for sensing Alcohol gas concentration. MQ3 Alcohol GAS Sensor can detect Alcohol gas concentrations anywhere from 200 to 10000 ppm. The MQ3 GAS sensor has a very hight sensitivity to Alcohol gas. The sensitive material of MQ3 Sensor is SnO2, which has lower conductivity in clean air. When the target alcohol gas exist, the sensor's conductivity is higher along with the gas concentration rising. MQ3 GAS sensor has high sensitivity to Alcohol, and good resistance to disturb of gasoline, smoke and vapour. The sensor could be used to detect alcohol with different concentration, it is with low cost and suitable for different application.
Features
- High sensitivity to Alcohol Rs (in air) Rs (0.4mg/l alcohol).
- Heater voltage = 5.0V
- Drunk Driver detection system
- Portable alcohol detector
MQ7,Carbon Monoxide Sensor
Product Brochure
Model / Part Number | MQ-7 |
Target gases | CO |
Measuring Range | 20-10,000 ppm |
Dimensions | 3.5cm X 2.2cm - 1.4inch x 0.9inch |
Response Time | <=1 sec |
Operating Temperature | 20C~+50C |
Product Details:
Sensitivity | high |
Measuring Range | 20-10,000 ppm |
Heater Power | 5V DC or AC |
MQ-7 is a Carbon Monoxide (CO) sensor, suitable for sensing Carbon Monoxide concentrations(PPM) in the air. The MQ-7 sensor can meassure CO concentrations ranging from 20 to 2000ppm. This sensor has a high sensitivity and fast response time. The sensor's output is an analog resistance. The drive circuit is very simple , just a voltage devider; all you need to do is power the heater coil with 5V DC or AC , add a load resistance, and connect the output to an ADC or a simple OPAMP comparator.
MQ-7 Carbon Monoxide Gas Sensor Module
Product Brochure
Model / Part Number | MQ-7 |
Target gases | carbon monoxide |
Operating Voltage | 5V |
Operating Humidity | 0-95%RH |
Preheat Duration | No less than 48 hours |
Circuit voltage | 5V+-0.1 |
Heating resistance | 33 ohm +-5% |
Heating time (high) | 60+-1 seconds |
Heating time (low) | 90+-1 seconds |
Product Details:
Detection of gas | Carbon Gas |
The heating voltage | 5V +/- 0.2V AC/DC |
Working temperature | -10 to 50 degC (nominal temperature 20degC) |
Working current | 140mA |
Loop voltage | 10V (maximum DC 15V |
Load resistance | 10K (adjustable) |
Detection concentration range | 10-1000ppm |
Humidity | 95% RH (nominal humidity 65% RH) |
Product Description
This Carbon Monoxide (CO) gas sensor detects the concentrations of CO in the air and ouputs its reading as an analog voltage. The sensor can measure concentrations of 10 to 10,000 ppm.The sensor can operate at temperatures from -10 to 50°C and consumes less than 150 mA at 5V.
MQ7 CO gas sensor
Material: Module
Size: 35mm × 22mm × 18mm
Detection of gas: carbon gas
1, the heating voltage: 5 ± 0.2V (AC · DC)
2, Working current: 140mA
3, loop voltage: 10V (maximum DC 15V)
4, load resistance: 10K (adjustable)
5, detection concentration range: 10-1000ppm
6, clean air voltage: ≤1.5V
7. Sensitivity: ≥3%
8. Response time: ≤1S (preheat 3-5 minutes)
9, Response time: ≤30S
10, the element power: ≤0.7W
11, the working temperature: -10 ~ 50 ℃ (nominal temperature 20 ℃)
12, Humidity: 95% RH (nominal humidity 65% RH
MQ-8, Hydrogen Gas Sensor
Product Brochure
Model / Part Number | MQ-8 |
Target gases | Hydrogen |
Operating Voltage | 5V |
Operating Humidity | 0-95%RH |
Preheat Duration | Over 24 hour |
Circuit voltage | 5V+-0.1 |
Load resistance | 10K ohm |
Heater resistance | 31 ohm +-5% |
Product Details:
Sensitivity | High |
Detection Range | 100-10,000 ppm |
Heater voltage | 5V |
Diameter | 18mm |
Pins | 6mm High |
Hydrogen Gas Sensor MQ8 for measuring the concentration of Hydrogen (H2) in the air. Suitable for measuring concentrations from 100 to 10,000 ppm. Easy to implement heater drive and measuring circuit. This sensor is designed for long life and stable output. Our MQ-8 Hydrogen Gas Sensor is ideal for use in a Gas Leakage Circuit for detecting gas leaks.
Features:
- 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
MQ-8, Hydrogen Gas Sensor Module
Product Brochure
Model / Part Number | MQ-8 |
Target gases | Hydrogen |
Operating Voltage | 5V |
Operating Humidity | 0-95%RH |
Preheat Duration | Over 24 hour |
Circuit voltage | 5V+-0.1 |
Load resistance | 10K ohm |
Heater resistance | 31 ohm +-5% |
Product Details
Application | Hydrogen Gas sensing |
Working voltage | +5V DC |
Main chip | LM393 |
Size | 32 mm X22mm X27mm |
Output | Dual signal output (TTL level output and analog output) |
Description
- Size 32 mm X22mm X27mm
- Main chip the LM393, MQ-8 gas sensor
- Working voltage DC5V
- With a signal output instructions.
- Dual signal output (TTL level output and analog output)
- TTL output valid signal for low level. (when the low output electric signal lights at 4. ordinary times, can be directly pick up SCM)
- Analog 0 ~ 5 v 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 service life and reliable stability
- Quick response recovery features
MQ-9 Carbon Monoxide Combustible Gas Detection Module
Product Brochure
Model / Part Number | MQ-9 |
Target gases | CH4 and LPG |
Operating Voltage | 5V |
Operating Humidity | 0-95%RH |
Preheat Duration | No less than 48 hours |
Circuit voltage | 5V+-0.1 |
Heating resistance | 33 ohm +-5% |
Heating time (high) | 60+-1 seconds |
Heating time (low) | 90+-1 seconds |
Product Details:
Minimum Order Quantity | 1 Piece |
Sensitivity | High to Methane,Propene and CO |
High Heater Temp | 5V for Methane,Propane |
Low Heater Temp | 1.5V for CO |
Interface type | Analog |
Concentration | o 10-1000ppm CO o 100-10000ppm combustible gas |
Size | 40x20mm |
Description:
The Analog CO/Combustible Gas Sensor(MQ9) module is useful for gas leakage detecting, it used the sensitive material SnO2, which with lower conductivity in clean air. It make detection by method of cycle high and low temperature, and detect CO when low temperature (heated by 1.5V). The sensors conductivity is more higher along with the gas concentration rising. When high temperature (heated by 5.0V), it detects Methane, Propane, etc. combustible gas and cleans the other gases adsorbed under low temperature. MQ-9 gas sensor has high sensitivity to Carbon Monoxide, Methane and LPG. The sensor could be used to detect different gases contains CO and combustible gases, it is with low cost and suitable for different application.
Application Idea:
- Domestic gas leakage detector
- Industrial gas detector
- Portable gas detector
Features:
- High sensitivity to Methane, Propane and CO
- Long life and low cost
- Simple drive circuit
Air Quality Sensor MQ135
Product Brochure
Model / Part Number | MQ-135 |
Target gases | NH3,NOx,alcohol,Benzene,smoke,CO2 |
Operating Voltage | 5V |
Operating Humidity | 0-95%RH |
Preheat Duration | Over 24 hour |
Circuit voltage | 5V+-0.1 |
Heater resistance | 33 ohm +-5% |
Product Details
Application | Detecting a wide range of gases, including NH3, NOx, alcohol, benzene, smoke and CO2 |
High sensitivity | Ammonia, Sulfide And Benze |
Detection Range | 10 - 300 Ppm Nh3, 10 - 1000 Ppm Benzene, 10 - 300 Alcohol |
Heater Voltage | 5.0V |
Dimensions | 18 Mm Diameter, 17 Mm High Excluding Pins, Pins - 6 Mm High |
DescriptionAir quality sensor MQ135for detecting a wide range of gase, including NH3, NOx, alcohol, benzene, smoke and CO2. Ideal for use in office or factory. MQ135 gas sensor has high sensitivity to Ammonia, Sulfide and Benze steam, also sensitive to smoke and other harmful gases. It is with low cost and particularly suitable for Air quality monitoring application.
Features
- High Sensitivity
- High sensitivity to Ammonia, Sulfide and Benze
- Stable and Long Life
- Detection Range 10 - 300 ppm NH3, 10 - 1000 ppm Benzene, 10 - 300 Alcohol
- Heater Voltage 5.0V
- Dimensions 18mm Diameter, 17mm High excluding pins, Pins - 6mm High
- Long life and low cost
MQ-3, Alcohol Sensor
Minimum Order Quantity: 01 Piece
Product Brochure
Model / Part Number | MQ-3 |
Target gases | alcohol |
Operating Voltage | 5V |
Operating Humidity | 0-95%RH |
Preheat Duration | Over 24 hour |
Circuit voltage | 5V+-0.1 |
Load resistance | 200K ohm |
Heater resistance | 33 ohm +-5% |
Product Details
Sensor Type | Semicoductor |
Detection Gas | Alcohol |
Concentration | 20-10,000 ppm |
Humidity | 20dg C |
TheAlcohol Sensor MQ303Ais a semiconductor sensor for Alcohol detection. It has very good sensitivity and fast response to alcohol, suitable for portable alcohol detector.
Specifications
- High sensitivity
- Fast response and resume
- Long life and low cost
- Mini size
MQ-135, Gas Sensor Module for Air Quality
Minimum Order Quantity: 01 Piece
Target gases | NH3,NOx, alcohol, Benzene, smoke,CO2 |
Operating Voltage | 5V |
Operating Humidity | 0-95%Rh |
Preheat Duration | Over 24 hour |
Product Details:
Working voltage | DC 5V |
Working current | 150mA |
DOUT | TTL output |
AOUT | Analog output |
Preheat time | Over 20s |
Dimension | 32mm x 22m x 27mm(HIGH 27mm) |
Description:
Sensitive material of MQ135 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensors conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration. MQ135 gas sensor has high sensitity to Ammonia, Sulfide and Benze steam, also sensitive to smoke and other harmful gases. It is with low cost and suitable for different application.Used for family,Surrounding environment noxious gas detection device, Apply to ammonia, aromatics, sulfur, benzene vapor, and other harmful gases/smoke, gas detection, tested concentration range: 10 to 1000ppm
Specification
- Working voltage:DC 5V
- Working Current: 150mA
- DOUT: TTL output
- AOUT: Analog output
- Preheat time: Over 20s
- Dimension: 32mm x 22m x 27mm(HIGH 27mm)
Methane CNG Gas Sensor MQ4
Product Brochure
Product Details:
Measuring Range | 200ppm-10000ppm |
Sensitivity | High |
Output | Analog |
Response Time | Fast |
Methane CNG Gas Sensor MQ4 is a simple-to-use compressed natural gas (CNG) sensor, suitable for sensing natural gas (composed of mostly Methane [CH4]) concentrations in the air. The MQ-4 can detect natural gas concentrations anywhere from 200 to 10000ppm. This sensor has a high sensitivity and fast response time. The sensor’s output is an analog resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC.
MQ4 Methane Gas Sensor Module
Product Brochure
This is a very easy to use low cost semiconductor Gas sensor Module with analog and digital output. This module uses MQ4 Methane gas sensor as a gas sensing element. It requires no external components just plug in Vcc & ground pins and you are ready to go.For Digital output the threshold value can be easily set by an on-board potentiometer. Using this module you can easily interface MQ4 Methane (CNG) gas Sensor to any Microcontroller, Arduino or even Raspberry Pi.Since this Gas Sensor module is sensitive to Methane it is also small sensitivity to alcohol & smoke.
Specification of MQ4 GAS Sensor Module
- Power Supply 5 Volts
- Interface Type Analog & Digital
- High Sensitivity to Methane & small sensitivity to smoke & alcohol
- Low Cost.
- Stable & Long Life.
- On board Power indication.
1. VCC positive power supply (5V)
2. GND power supply is negative
3. DO TTL switching signal output
4. AO analog signal output
Module Applications
Suitable for home or factory methane gas , natural gas and other monitoring devices to test natural gas, methane 300 to 10000ppm
MQ-5 Methane LPG Gas Sensor Module
Product Brochure
Sensitive material of MQ-5 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensors conductivity is more higher along with the gas concentration rising. The sensor convert change of conductivity to correspond output signal of gas concentration.
MQ-5 gas sensor has high sensitity to Methane, Propane and Butane, natural gas and could be used to detect both Methane and Propane.
Features
- Support both the output digital value and the output analog value.
- High sensitivity to Combustible gas in wide range .
- Can detect liquefied gasMethane,Butane, Propane and natural gas .
- Adjustable Sensitivity , Stable Performance.
- Pin Connection: GND: Ground, Dout: digital output, Aout: analog output Vcc: 5V
- Applicable to a variety of platforms including Arduino / AVR / ARM.
MQ-6 Gas Detector Module
Minimum Order Quantity: 01 Piece
Product Details
Sensor Type | Semiconductor |
Standard Encapsulation | Bakelite (Black Bakelite) |
Detection Gas | Isobutane, Butane, LPG |
Concentration | 300-10000ppm ( Butane, Propane, LPG) |
Preheat time | Over 48 hours |
Loop Voltage Vc | less than equal to 24V DC |
Load Resistance RL | Adjustable |
Description
Sensitive material MQ-6 gas sensor is used to clean the air in the lower conductivity of tin dioxide (SnO2). When there is the environment in which the combustible gas sensor , conductivity sensor with increasing concentration of combustible gases in air increases . Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-6 gas sensor for propane , butane , liquefied petroleum gas sensitivity is high, natural gas and has a good sensitivity. This sensor can detect a variety of flammable gas , is a low-cost sensors for a variety of applications
Suitable for home or industrial LPG ( liquefied petroleum gas ) , butane , propane , LNG ( liquefied natural gas ) detection devices. Excellent resistance to ethanol vapor , smoke interference Module
Features
1 , using high-quality dual-panel design, with power indicator and TTL signal output instructions;
2 , the switching signal having a DO (TTL) output and analog output AO ;
3, TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
4 , 0 ~ 5V analog output voltage , the higher the concentration the higher the voltage.
5 , propane , butane , LPG, LNG has a good detection sensitivity.
6 , there are four screw holes for easy positioning ;
7 Product dimensions 32 (L) * 20 (W) * 22 (H)
8 , has a long life and reliable stability
9 , rapid response and recovery characteristics