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2020 China supplier Gas sensor module MQ-2~MQ-135 9 kind of MQ-2/3/4/5/6/7/8/9

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  • 100-499 Units
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  • 500-999 Units
    $1.35
  • >=1000 Units
    $1.30
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Overview
Quick Details
Place of Origin:
China
Model Number:
MQ-2~MQ-135
Usage:
Gas Sensor
Theory:
Resistance Sensor
Interface:
Digital
Technology:
Optical
Application:
Industrial Automation, DIY Project
Product name:
Gas Sensor
Type:
Detection Smoke methane liquefied Gas Sensor Module
For:
UNO R3
Quality:
High-quality
Warranty:
1-3years
Condition:
electronic components
ROHS:
YES

Packaging & Delivery

Selling Units:
Single item
Single package size: 
1X1X1 cm
Single gross weight:
0.050 kg
Picture Example:
package-img
package-img
Lead Time :
Quantity(Units) 1 - 5000 >5000
Est. Time(days) 3 To be negotiated
Product Description
  • MQ2~MQ135

MQ series
MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135
Detection Smoke methane liquefied Gas Sensor Module for Arduino Kit

Product Usage
MQ-2 Sensor Description:
MQ-2 Sensor Description:
The gas-sensing material used in the MQ-2 gas sensor is tin oxide (SnO2) with a low conductivity in clean air. When there is a
combustible gas in the environment in which the sensor is present, the conductivity of the sensor increases as the concentration
of combustible gas in the air increases. The change in conductivity can be converted to an output signal corresponding to the gas
concentration using a simple circuit. The MQ-2 gas sensor is highly sensitive to liquefied gas, propane and hydrogen, and is ideal
for the detection of natural gas and other combustible vapors. This sensor can detect a variety of flammable gases, is a variety
of applications for low-cost sensors.

Module Application:
Can be used for home and factory gas leak monitoring device, suitable for liquefied gas, butane, propane, methane, smoke and other
detection;

Module Features:
1, the use of high-quality double-panel design, with power indicator and TTL signal output instructions;
2, with DO switch signal (TTL) output and AO analog signal output;
3, TTL output valid signal is low. (When the output low signal lights, can be directly connected to the microcontroller or relay
module)
4, the analog output voltage with the higher the higher the voltage the higher the voltage.
5, the liquefied petroleum gas, natural gas, city gas, smoke has a better sensitivity.
6, there are four screw holes to facilitate positioning;
7, product dimensions: 32 (L) * 20 (W) * 22 (H)
8, with long service life and reliable stability
9, fast response to recovery features

Electrical performance:
Input voltage: DC5V Power consumption (current): 150mA
DO output: TTL digital 0 and 1 (0.1 and 5V)
AO output: 0.1-0.3V (relatively no pollution), the maximum concentration of about 4V voltage
Special reminder: the sensor power, the need to preheat 20S or so, the measured data was stable, the sensor fever is a normal
phenomenon, because the internal electric wire, if the hot is not normal.

Wiring:
1, VCC: then the power supply positive (5V)
2, GND: Connect the power supply negative
3, DO: TTL switch signal output
4, AO: analog signal output
MQ-3 Sensor Description:

MQ-3 gas sensor is sensitive material used in clean air, low conductivity tin dioxide (SnO2). When the sensor is present in the
environment in which the alcohol vapor, the sensor\'s conductivity increases with the concentration of alcohol gas in the air
increases. Using a simple circuit can be converted to the change in conductivity of the gas concentration with the corresponding
output signal. MQ-3 gas sensor with high sensitivity to alcohol, gasoline can resist, smoke, water vapor interference. This sensor
can detect various concentrations of alcohol atmosphere, is a low-cost sensors for a variety of applications

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 , the higher the voltage , the concentration of the analog output voltage is higher.
5 , air quality , hazardous gas detection with good 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

Electrical properties:
Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal
phenomenon , because the internal heating wire , if hot is not normal .

Wiring:
1, VCC: positive power supply (5V)
2, GND: power supply is negative
3, DO: TTL switching signal output
4, AO: analog signal output
MQ-4 Sensor Description:

MQ-4 gas sensor sensitive material used in clean air conductivity is lower tin dioxide (SnO2). When the sensor is present in the
environment in which the combustible gas, the sensor\'s conductivity increases with the concentration of combustible gases in air
increases. Using a simple circuit can be converted to the change in conductivity of the gas concentration with the corresponding
output signal. MQ-4 methane gas sensor for high sensitivity, propane, butane and has a good sensitivity. The sensor can detect a
variety of flammable gases, especially natural gas, is a low-cost sensors for a variety of applications.

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 , the higher the voltage , the concentration of the analog output voltage is higher.
5 , air quality , hazardous gas detection with good 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

Electrical properties:
Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal
phenomenon , because the internal heating wire , if hot is not normal .

Wiring:
1, VCC: positive power supply (5V)
2, GND: power supply is negative
3, DO: TTL switching signal output
4, AO: analog signal output
MQ-5 Sensor Description:

Sensitive material MQ-5 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-5 gas sensor of high butane , propane, methane sensitivity, methane and propane can be better taken into account. This
sensor can detect a variety of combustible gases, especially natural gas , is a low-cost sensor for a variety of applications .
Suitable for home or industrial liquefied petroleum gas , natural gas, coal gas monitoring devices. Excellent resistance to
alcohol, 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 , the higher the voltage , the concentration of the analog output voltage is higher.
5 , air quality , hazardous gas detection with good 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

Electrical properties:
Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal
phenomenon , because the internal heating wire , if hot is not normal .

Wiring:
1, VCC: positive power supply (5V)
2, GND: power supply is negative
3, DO: TTL switching signal output
4, AO: analog signal output
MQ-6 Sensor 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 , the higher the voltage , the concentration of the analog output voltage is higher.
5 , air quality , hazardous gas detection with good 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

Electrical properties:
Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal
phenomenon , because the internal heating wire , if hot is not normal .

Wiring:
1, VCC: positive power supply (5V)
2, GND: power supply is negative
3, DO: TTL switching signal output
4, AO: analog signal output
MQ-7 Sensor Description:

MQ-7 gas sensor is sensitive material used in clean air, low conductivity tin dioxide (SnO2). Detection method using low
temperature cycling (1.5V heating) detect carbon monoxide, airborne sensor conductivity increases with the increase of the
concentration of carbon monoxide gas, high temperature (5.0V heating) cleaning stray gas adsorption at low temperature. Using a
simple circuit can be changes in the conductivity, concentration of the gas is converted to the corresponding output signal. MQ-7
gas sensor with high sensitivity for carbon monoxide, this sensor can detect a variety of gases containing carbon monoxide, is a
low-cost sensors for a variety of applications,

Module Applications:
For home, carbon monoxide detection device environment. Suitable for carbon monoxide and gas detection.

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 , the higher the voltage , the concentration of the analog output voltage is higher.
5 , air quality , hazardous gas detection with good 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

Electrical properties:
Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal
phenomenon , because the internal heating wire , if hot is not normal .

Wiring:
1, VCC: positive power supply (5V)
2, GND: power supply is negative
3, DO: TTL switching signal output
4, AO: analog signal output
MQ-8 Sensor Description:
MQ-8 gas sensor sensitive material used in clean air conductivity is lower tin dioxide (SnO2). When the sensor is present in the
environment in which the combustible gas, the sensor\'s conductivity increases with the concentration of combustible gases in air
increases. Using a simple circuit can be converted to the change in conductivity of the gas concentration with the corresponding
output signal. MQ-8 hydrogen gas sensor of high sensitivity, the monitoring of the other hydrogen-containing gas is also very
satisfactory. The sensor can detect a variety of hydrogen-containing gas, in particular, city gas, is a low-cost sensors for a
variety of applications.

Module Applications:
Suitable for domestic or industrial hydrogen leak on a monitoring device. Are not subject to ethanol vapor, soot, carbon monoxide
and other gases 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 , the higher the voltage , the concentration of the analog output voltage is higher.
5 , air quality , hazardous gas detection with good 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

Electrical properties:
Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal
phenomenon , because the internal heating wire , if hot is not normal .

Wiring:
1, VCC: positive power supply (5V)
2, GND: power supply is negative
3, DO: TTL switching signal output
4, AO: analog signal output

MQ-9 Sensor Description :
MQ-9 Sensor Description :
Sensitive material MQ-9 gas sensor is used to clean the air in the lower conductivity of tin dioxide (SnO2). Detection method
using low temperature cycling (1.5V heating ) to detect carbon monoxide, conductivity sensors with carbon monoxide in the air
increased with increasing gas concentration , spurious adsorption at high temperatures (5.0V heating ) detection of combustible
gases methane, propane and cryogenic cleaning gases. Simple circuit can be used to change the conductivity , concentration of the
gas is converted to the corresponding output signal. MQ-9 high gas sensor for carbon monoxide, methane , liquefied petroleum gas
sensitivity , the sensor can detect a variety of gases containing carbon monoxide and flammable , is a low-cost sensors for a
variety of applications .

Module Applications:
Suitable for home or factory gas leakage monitoring devices , monitoring devices suitable for carbon monoxide and other
combustible gases , carbon monoxide can be tested 10 to 1000ppm CO, combustible gas range 100 to 10000ppm

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 , the higher the voltage , the concentration of the analog output voltage is higher.
5 , air quality , hazardous gas detection with good 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

Electrical properties:
Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V

Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal
phenomenon , because the internal heating wire , if hot is not normal .

Wiring:
1, VCC: positive power supply (5V)
2, GND: power supply is negative
3, DO: TTL switching signal output
4, AO: analog signal output
MQ-135 Sensor Description:
MQ-135 Sensor Description:
Sensitive material MQ135 gas sensor is used in clean air low conductivity tin oxide (SnO2). When the sensor is kept in their
environment
In the polluting gases , the conductivity sensor with increasing air pollution in gas concentration increases. Using a simple
circuit can change the conductivity
Conversion of an output signal corresponding to the gas concentration .
MQ135 sensor for ammonia, sulfide , benzene vapor high sensitivity of the smoke and other harmful monitor is also very good. This
sensor can be seized
Measure a variety of harmful gases , is a low-cost sensors for a variety of applications .

Module Applications:
Probe for home, environmental harmful gas detection device , suitable to ammonia , aromatic compounds , sulfur compounds , benzene
vapor , smoke and other gases harmful gases , the gas sensitive element concentration range : 10 to 1000ppm

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 , the higher the voltage , the concentration of the analog output voltage is higher.
5 , air quality , hazardous gas detection with good 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

Electrical properties:
Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal
phenomenon , because the internal heating wire , if hot is not normal .

Wiring:
1, VCC: positive power supply (5V)
2, GND: power supply is negative
3, DO: TTL switching signal output
4, AO: analog signal output
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Shenzhen JRT Electronic Technology Co.,Ltd was established in 2012,We deal with electronic components business all over the world.. It's a professional distributor of electronic components in Shenzhen, China. We are specialized in the integrated circuits,transistors,igbt modules. Our company has our own inventory in large quantity that can meet all your requirement and need. Until now, our company has earned a good reputation in international market with good price, fast delivery and quantity guaranteed.
In 2014,we cooperated with factory to produce develop modules use our chips.Also,we referred to 3C products,used our components to produce wireless charger and BT speaker since 2016.We have professional team to follow your business.we are young,action makes our potential limitless.It s why customers choose to cooperate with us. We promise to provide high quality products with competitive prices, fast delivery and excellent services for all our customers. All staff in the company will do best to offer you the best products and satisfactory service.
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