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SKU: 12149
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MQ Series Sensors MQ-2 Use for Detecting: Combustible gas such as LPG, butane, methane, alcoho MQ Socket Base MQ-135 Probe head

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Feature:
MQ-2 MQ2 Smoke Gas LPG Butane Hydrogen Gas Sensor Detector Module 100% band new and high quality

Specification:
Color : black
Size:32mmx22mmx27mm/1.26''x0.86''x1.06''
Main Chip: The LM393, ZYMQ - 2 Gas Sensor
Working Voltage: DC 5 V
Great for home or factory gas leakage detection
Use for Detecting: Combustible gas such as LPG, butane, methane, alcohol, propane, hydrogen, smoke, etc
Module Application:
Alcohol (ethanol) detection, for motor vehicle drivers and other persons who are prohibited from on-site inspection of drinkers and also for the detection of ethanol vapor in other places
MQ-3 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, the higher the higher the voltage the higher the voltage.
5, the alcohol detection has a better sensitivity.
6, there are four screw holes to facilitate positioning;
7, product dimensions: 35.5 (L) * 22.5 (W) * 23 (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 3.3V)
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-4

Product Overview:

Sensitive material MQ- 4 gas sensors used in clean air, low conductivity tin oxide (SnO2). When there is an environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases. Use simple circuit can convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-4 Methane gas sensor of high sensitivity, propane, butane and has a good sensitivity. The sensor can detect a variety of combustible gases, especially natural gas, it is a low-cost sensor suitable for a variety of applications.
Application:
Gas can be used in homes and factories leakage monitoring device, suitable for the detection of liquefied petroleum gas, butane, propane, methane, smoke and the like

Features:


  • 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. ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
  • Analog output voltage with the higher concentration of higher voltage
  • There are four screw holes for easy positioning.
  • Has a long life and reliable stability
  • Rapid response and recovery characteristic
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:

  • VCC: positive power supply (5V)
  • GND: power supply is negative
  • DO: TTL switching signal output

  • AO: analog signal output

    NOTE:

    After the sensor is powered, need to warm about 20S, measured data becomes stable, heat sensor is normal
    MQ-5
    Size: 32mm X22mm X27mm
    Main chip: LM393, ZYMQ-5 gas sensor
    Operating voltage: DC 5 Volt

    Features:
    1. Indication of the signal output.
    2. Dual signal output (analog output, and TTL level output)
    3. TTL output signal is low. (When low output signal light, and can be connected directly to the microcontroller)
    4. 0 ~ 5V analog output voltage, the higher the concentration, the higher the voltage.
    5. Liquefied petroleum gas, natural gas, city gas, better sensitivity.
    6. Has a long life and reliable stability
    7. Fast response and recovery characteristics

    Applications:
    Liquefied petroleum gas, natural gas, coal gas monitoring device suitable for home or industrial. Excellent resistance to alcohol, smoke interference ability.

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 , 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
MQ-7 Characteristic:
1,Module size: 32(L)× 20(W)× 22(H)
2,Input voltage: DC5V.
3,Power dissipation: 150mA.
4,DO output: 0.1-5V.
5,AO output: 0.1-0.3V.
6,Detectable concentration: 10-1000ppmCO.
Module features:
1,High quality double panel design.
2,Power and TTL signal output indication.
3,Has better sensitive detection for carbon monoxide.
4,Has a long service life and reliable stability.
5,Suitable for the detection of carbon monoxide, gas, etc.
 MQ-8
1. Using high quality double panel design, it has power indication and TTL signal output indication.

2. It has DO switching signal (TTL) output and AO analog signal output.

3, the TTL output effective signal is low level. (when the output is low, the signal lights on, can be directly connected to a single chip or a relay module).

4. To simulate the output voltage, the higher the concentration, the higher the voltage.

5. It has good sensitivity to the detection of hydrogen.

6, four screw holes are easy to locate;

7. The shape of the product: 32 (L) *20 (W) *22 (H)

8. Long term life and reliable stability

9. Fast response recovery characteristics


Electrical performance:

Input voltage: DC5V power consumption (current): 150mA

DO output: TTL digits 0 and 1 (0.1 and 5V)

AO output: 0.1-0.3V (relatively pollution-free), the maximum concentration voltage is about 4V


MQ-9 Features:


- For home or factory gas leakage monitoring devices, suitable for carbon monoxide and other combustible gases and monitoring devices
- High-quality, dual-panel design, with power indicator and TTL signal output instructions;
- DO switching signal(TTL) output and AO analog signal output
- TTL output valid signal is low. (When the output low signal light is on, it can be directly connected microcontroller or relay module)
- Analog output voltage:the higher the concentration,the higher the voltage
- Have better sensitivity to carbon monoxide detector
- Four screw holes,easy positioning
- Product Dimensions: 32 (L) * 20 (W) * 22 (H)
- Long life and stability
- Quick response and resume

- Electrical performance:
- Input voltage: DC5V
- Power (current): 150mA
- DO output: TTL digital 0 and 1 (0.1 and 5V)
- AO Output: 0.1-0.3V (relatively clean), the highest concentration voltage is about 4V
- Special note: When the sensor is powered, it needs to be warmed up about 20S, so the measured data becomes stable, the heat sensor is a normal phenomenon, because its inside is with an electric wire, if not, unnomal.

Product Overview:

MQ135 gas sensor sensitive material used in the clean air, low conductivity tin oxide (SnO2). When present in the environment pollution gas sensor, conductivity sensor with the increase in air pollution in the gas concentration increases. Use simple circuit can convert the change in conductivity of the gas concentration corresponding to the output signal.
MQ135 ammonia gas sensor, sulfide, benzene vapor high sensitivity, smoke and other harmful monitoring will also be ideal. The sensor can detect a variety of harmful gases, it is a low-cost sensors for a variety of applications.
Application:
Can be used for home and factory gas leakage monitoring devices, suitable for liquefied petroleum gas, butane, propane, methane, smoke, etc.


  • 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. ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
  • Analog output voltage with the higher concentration of higher voltage
  • There are four screw holes for easy positioning.
  • Has a long life and reliable stability
  • Rapid response and recovery characteristic
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:

  • VCC: positive power supply (5V)
  • GND: power supply is negative
  • DO: TTL switching signal output

  • AO: analog signal output

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