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Semiconductor gas sensor

MQ-7B Semiconductor Sensor for Carbon Monoxide
MQ-7B Semiconductor Sensor for Carbon Monoxide
  • CO
  • 10-500ppm
  • Read More
MQ316 Mouth smell sensor
MQ316 Mouth smell sensor
  • Mouth odor:C2H5OH、H2S、CH3SH
  • C2H5OH(5-200ppm)
  • Read More
MQ303B Semiconductor Sensor for Alcohol Gas
MQ303B Semiconductor Sensor for Alcohol Gas
  • C2H5OH
  • 20-500ppm
  • Read More
MQ138 VOC Gas Sensor
MQ138 VOC Gas Sensor
  • C7H8、CH3COCH3、C2H5OH、H2
  • 5～500ppm
  • Read More
MQ137 Ammonia Gas Sensor
MQ137 Ammonia Gas Sensor
  • NH3
  • 5-500ppm
  • Read More
MQ136 Gas Sensor for Hydrogen Sulfide
MQ136 Gas Sensor for Hydrogen Sulfide
  • H2S
  • 1-200ppm
  • Read More
MQ135 Semiconductor Sensor for Air Quality
MQ135 Semiconductor Sensor for Air Quality
  • Air pollution：NH3、sulfide、benzene series steam
  • NH3、C7H8、H2、Smoke(10～1000ppm)
  • Read More
MQ131 Ozone Gas Sensor (Low Concentration)
MQ131 Ozone Gas Sensor (Low Concentration)
  • O3
  • 10-1000ppb
  • Read More
MQ131 Ozone Gas Sensor (High Concentration)
MQ131 Ozone Gas Sensor (High Concentration)
  • O3
  • 10-1000ppm
  • Read More
MQ-9B Semiconductor Sensor for Carbon Monoxide
MQ-9B Semiconductor Sensor for Carbon Monoxide
  • CO,CH4
  • CO(10-500ppm),CH4(300-10000ppm)
  • Read More
MQ-8 Hydrogen Gas Sensor
MQ-8 Hydrogen Gas Sensor
  • H2
  • 100-1000ppm
  • Read More
MQ-6 Semiconductor Sensor for Flammable Gas
MQ-6 Semiconductor Sensor for Flammable Gas
  • LPG,CH4
  • CH4、C3H8(300-10000ppm)
  • Read More
MQ-5B Semiconductor Sensor for Flammable Gas
MQ-5B Semiconductor Sensor for Flammable Gas
  • LPG,CH4
  • CH4、C3H8(300-10000ppm)
  • Read More
MQ-5 Semiconductor Sensor for Flammable Gas
MQ-5 Semiconductor Sensor for Flammable Gas
  • LPG,CH4
  • CH4、C3H8(300-10000ppm)
  • Read More
MQ-4B Semiconductor Sensor for Flammable Gas
MQ-4B Semiconductor Sensor for Flammable Gas
  • CH4,Flammable gas
  • 300-10000ppm
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MQ-4 Semiconductor Sensor for Flammable Gas
MQ-4 Semiconductor Sensor for Flammable Gas
  • CH4,Flammable gas
  • CH4(300-10000ppm)
  • Read More
MQ-3B Semiconductor Sensor for Alcohol Gas
MQ-3B Semiconductor Sensor for Alcohol Gas
  • C2H5OH
  • 25-500ppm
  • Read More
MQ-2B Semiconductor Sensor for Flammable Gas
MQ-2B Semiconductor Sensor for Flammable Gas
  • Flammable gas,Smoke
  • 300-10000ppm(Flammable gas)
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MQ-2 Semiconductor Sensor for Flammable Gas
MQ-2 Semiconductor Sensor for Flammable Gas
  • Flammable gas,Smoke
  • 300-10000ppm(Flammable gas)
  • Read More
MP905 Air-Quality Gas Sensor
MP905 Air-Quality Gas Sensor
  • alcohol, smoke, formaldehyde, toluene, acetone, benzene,lighter gas,paint &etc.
  • 0.5-1000ppm(C2H5OH)
  • Read More
MP901 Air-Quality Gas Sensor
MP901 Air-Quality Gas Sensor
  • alcohol, smoke, formaldehyde, toluene, acetone, benzene,lighter gas,paint &etc.
  • 1-50ppm
  • Read More
MP801 Air-Quality Gas Sensor
MP801 Air-Quality Gas Sensor
  • air quality：C6H6、C7H8、CH2O、C2H5OH、smoke
  • 0.5-1000ppm(C2H5OH)
  • Read More
MP-702 Ammonia Gas Sensor
MP-702 Ammonia Gas Sensor
  • NH3
  • 0-100ppm
  • Read More
MP510C Refrigerant Gas Sensor
MP510C Refrigerant Gas Sensor
  • refrigerant gases：R32、R134a、R410a、R290
  • 100-10000ppm
  • Read More
MP503 Air-Quality Gas Sensor
MP503 Air-Quality Gas Sensor
  • C2H5OH、smoke、iso-butane、CH2O
  • 10-1000ppm(C2H5OH)
  • Read More
MP-9 CO/CH4 Semiconductor Flat Surfaced Gas Sensor
MP-9 CO/CH4 Semiconductor Flat Surfaced Gas Sensor
  • CO,CH4
  • 50-1000ppm(CO),300-10000ppm(CH4)
  • Read More
MP-7 Carbon Monoxide GAS SENSOR
MP-7 Carbon Monoxide GAS SENSOR
  • CO
  • 50-1000ppm
  • Read More
MP-5 Flammable Gas Sensor
MP-5 Flammable Gas Sensor
  • LPG,C3H8
  • 300-10000ppm
  • Read More
MP-4C Flammable Gas Sensor
MP-4C Flammable Gas Sensor
  • CH4,Nature gas,Marsh gas
  • 300-12000ppm
  • Read More
MP-4 Flammable Gas Sensor
MP-4 Flammable Gas Sensor
  • CH4,Nature gas,Marsh gas
  • 300-10000ppm
  • Read More
MP-3B Flat Surfaced Alcohol Sensor
MP-3B Flat Surfaced Alcohol Sensor
  • C2H5OH
  • 0-500ppm
  • Read More
MP-2 Smoke Gas Sensor
MP-2 Smoke Gas Sensor
  • C3H8、smoke
  • 200～10000ppm
  • Read More
GM-802B MEMS NH3 Gas Sensor
GM-802B MEMS NH3 Gas Sensor
  • NH3
  • 1-300ppm
  • Read More
GM-702B MEMS Carbon Monoxide Gas Sensor
GM-702B MEMS Carbon Monoxide Gas Sensor
  • CO
  • 5-5000ppm
  • Read More
GM-602B MEMS H2S Gas Sensor
GM-602B MEMS H2S Gas Sensor
  • H2S, Benzene
  • 0.5-50ppm
  • Read More
GM-512B MEMS Breath Smell Gas Sensor
GM-512B MEMS Breath Smell Gas Sensor
  • Mouth odor：H2S、C2H5OH、Acetone
  • 0.5-50ppm
  • Read More
GM-502B MEMS VOC Gas Sensor
GM-502B MEMS VOC Gas Sensor
  • VOC、C2H5OH、CH2O、C7H8
  • 1-500ppm
  • Read More
GM-402B MEMS Combustible Gas Sensor
GM-402B MEMS Combustible Gas Sensor
  • CH4,C3H8
  • 1-10000ppm
  • Read More
GM-302B MEMS Alcohol Gas Sensor
GM-302B MEMS Alcohol Gas Sensor
  • Ethanol vapor
  • 1-500ppm
  • Read More
GM-202B MEMS Smoke Gas Sensor
GM-202B MEMS Smoke Gas Sensor
  • C2H5OH,smoke
  • 10-1000ppm
  • Read More
GM-102B MEMS NO2 Gas Sensor
GM-102B MEMS NO2 Gas Sensor
  • NO2
  • 0.1-10ppm
  • Read More

Help you compare our sensors

Table Overview for Winsen Semiconductor gas sensor

Unsure which sensor to choose, please leave your infomation or email us

Modle Detection principle Characteristics Target gas Detection range Size

MQ-7B 		Semiconductor Good sensitivity to CO CO 10-500ppm φ16.7×9.4

MQ316 		Semiconductor High sensitivity to C2H5OH、H2S、CH3SH Mouth odor:C2H5OH、H2S、CH3SH C2H5OH(5-200ppm) φ9.4×8

MQ303B 		Semiconductor High sensitivity to C2H5OH and quick response and resume C2H5OH 20-500ppm φ9.4×6

MQ138 		Semiconductor High sensitivity to C7H8、CH3COCH3、C2H5OH、CH2O C7H8、CH3COCH3、C2H5OH、H2 5～500ppm φ19×24.2

MQ137 		Semiconductor Good sensitivity to NH3 NH3 5-500ppm φ19×24.2

MQ136 		Semiconductor Good sensitivity to H2S H2S 1-200ppm φ19×24.2

MQ135 		Semiconductor Good sensitivity to toxic gas Air pollution：NH3、sulfide、benzene series steam NH3、C7H8、H2、Smoke(10～1000ppm) φ19×24.2

MQ131-L 		Semiconductor Good sensitivity to O3 O3 10-1000ppb φ16×13.9

MQ131-H 		Semiconductor Good sensitivity to O3 O3 10-1000ppm φ19×24.2

MQ-9B 		Semiconductor Good sensitivity to CO CO,CH4 CO(10-500ppm),CH4(300-10000ppm) φ16.7×9.4

MQ-8 		Semiconductor Good sensitivity to H2 H2 100-1000ppm φ19×24.2

MQ-6 		Semiconductor Good sensitivity to flammable gas(Especially C3H8) LPG,CH4 CH4、C3H8(300-10000ppm) φ19×24.2

MQ-5B 		Semiconductor Good sensitivity to flammable gas(Especially C3H8) LPG,CH4 CH4、C3H8(300-10000ppm) φ16.7×9.4

MQ-5 		Semiconductor Good sensitivity to flammable gas(Especially C3H8) LPG,CH4 CH4、C3H8(300-10000ppm) φ19×24.2

MQ-4B 		Semiconductor High sensitivity to CH4 and strong anti-interference ability CH4,Flammable gas 300-10000ppm φ16.7×9.4

MQ-4 		semiconductor High sensitivity to CH4 and strong anti-interference ability CH4,Flammable gas CH4(300-10000ppm) φ19×24.2

MQ-3B 		semiconductor High sensitivity to alcohol gas and can resistant to the interference of gasoline, smoke and vapour. C2H5OH 25-500ppm φ17×9.4

MQ-2B 		Semiconductor High sensitivity to C3H8 and smoke Flammable gas,Smoke 300-10000ppm(Flammable gas) φ16.7×9.4

MQ-2 		Semiconductor Has high sensitivity to C3H8 and smoke Flammable gas,Smoke 300-10000ppm(Flammable gas) φ19×24.2

MP905 		Semiconductor High sensitivity to benzene,toluene,formaldehyde,alcohol,smoke,lighter gas,paints alcohol, smoke, formaldehyde, toluene, acetone, benzene,lighter gas,paint &etc. 0.5-1000ppm(C2H5OH) φ9.4×7.5

MP901 		Semiconductor High sensitivity to alcohol、smoke、formaldehyde、toluene、acetone、benzene、lighter gas、paint &etc. alcohol, smoke, formaldehyde, toluene, acetone, benzene,lighter gas,paint &etc. 1-50ppm φ9.4×7.5

MP801 		Semiconductor High sensitivity to C6H6、C7H8、CH2O、C2H5OH、smoke air quality：C6H6、C7H8、CH2O、C2H5OH、smoke 0.5-1000ppm(C2H5OH) φ9.4×7

MP-702 		Semiconductor High sensitivity to NH3 NH3 0-100ppm φ9.4×7

MP510C 		Semiconductor Can detect kinds of refrigerant gases refrigerant gases：R32、R134a、R410a、R290 100-10000ppm φ9.05×12.5

MP503 		Semiconductor High sensitivity to C2H5OH、smoke、iso-butane、CH2O C2H5OH、smoke、iso-butane、CH2O 10-1000ppm(C2H5OH) φ9.4×7

MP-9 		Semiconductor High sensitivity to CO、CH4 CO,CH4 50-1000ppm(CO),300-10000ppm(CH4) φ9.4×7.5

MP-7 		Semiconductor High sensitivity to CO CO 50-1000ppm φ9.4×8

MP-5 		Semiconductor Highest sensitivity to C3H8 LPG,C3H8 300-10000ppm φ9.4×7

MP-4C 		Semiconductor Highest sensitivity to CH4、excellent anti-interference ability and stability CH4,Nature gas,Marsh gas 300-12000ppm φ9.15×12.5

MP-4 		Semiconductor Highest sensitivity to CH4 CH4,Nature gas,Marsh gas 300-10000ppm φ9.4×7

MP-3B 		Semiconductor Highest sensitivity to C2H5OH C2H5OH 0-500ppm φ9.4×6

MP-2 		Semiconductor Good sensitivity to LPG、smoke C3H8、smoke 200～10000ppm φ9.4×7

GM-802B 		Semiconductor、MEMS High sensitivity to NH3 NH3 1-300ppm 5×5×1.55

GM-702B 		Semiconductor、MEMS High sensitivity to CO CO 5-5000ppm 5×5×1.55

GM-602B 		Semiconductor、MEMS High sensitivity to H2S H2S, Benzene 0.5-50ppm 5×5×1.55

GM-512B 		Semiconductor、MEMS High sensitivity to H2S, C2H5OH, Acetone Mouth odor：H2S、C2H5OH、Acetone 0.5-50ppm 5×5×1.55

GM-502B 		Semiconductor、MEMS MEMS technology, good shock resistance, small sizes and low power consumption VOC、C2H5OH、CH2O、C7H8 1-500ppm 5×5×1.55

GM-402B 		Semiconductor、MEMS High sensitivity to combustible gases, small sizes and low power consumption CH4,C3H8 1-10000ppm 5×5×1.55

GM-302B 		Semiconductor、MEMS MEMS technology, good shock resistance, small sizes and low power consumption Ethanol vapor 1-500ppm 5×5×1.55

GM-202B 		Semiconductor、MEMS High sensitivity to smoke,C3H8 C2H5OH,smoke 10-1000ppm 5×5×1.55

GM-102B 		Semiconductor、MEMS High sensitivity to NO2 gas, small sizes and low power consumption NO2 0.1-10ppm 5×5×1.55

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WHAT WE DO

Semiconductor gas sensor Knowledge

Keeping low CO2 level is important for human health, which not only means that the current environment has sufficient fresh air, but also greatly reduce the risk of building syndrome. Winsen CO2 sensor meets RESET standard, which is widely used in control panels or thermostats for HVAC systems.

Particulate Matter (PM) Sensors Of Two Different Principles

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Particulate Matter (PM) Sensors Of Two Different PrinciplesThe particulate matter sensors, with other names of particles sensors, PM2.5 PM10 sensors, dust senso

Winsen Photoelectric Sensors

Winsen Photoelectric Sensors

Winsen Photoelectric SensorsAs an high-tech company with combined business of R&D, manufacture, sales and solutions supply, Winsen has Photoelectric Sensors cov

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Comparison of Winsen Infrared Dust/Particles SensorsZPH01 Air-quality and Particles Sensor has stopped production from 2021 and not recommended any more.ZPH01B

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Pressure Sensors Use in Smart Natural Gas PipelinesPipelines are the primary way to transport the natural gas from drilling sites to residential end users or ga

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Temperature and Relative Humidity Sensors

Temperature and Relative Humidity Sensors

Temperature and Relative Humidity SensorsAmong environmental factors, temperature and humidity are two indicators that are closely related to our lives. Humidit

Winsen Sensor Solutions for Atmospheric and Environmental Monitoring

Winsen Sensor Solutions for Atmospheric and Environmental Monitoring

There are two main types of gas monitoring in air pollution control. The traditional industrial chain records gas data through sensors, collects the data throug

Winsen High Sensitive Infrared Flame Detection Sensor

Winsen High Sensitive Infrared Flame Detection Sensor

Fire is a burning phenomenon in air or oxygen, emitting heat, smoke. According to its characteristics, the flame can be divided into premixed flame and diffusio

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Our Hot Products

MQ-7B Semiconductor Sensor for Carbon Monoxide

MQ-7B Semiconductor Sensor for Carbon Monoxide

Semiconductor

Good sensitivity to CO

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MQ316 Mouth smell sensor

MQ316 Mouth smell sensor

Semiconductor

High sensitivity to C2H5OH、H2S、CH3SH

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MQ303B Semiconductor Sensor for Alcohol Gas

MQ303B Semiconductor Sensor for Alcohol Gas

Semiconductor

High sensitivity to C2H5OH and quick response and resume

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MQ138 VOC Gas Sensor

MQ138 VOC Gas Sensor

Semiconductor

High sensitivity to C7H8、CH3COCH3、C2H5OH、CH2O

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MQ137 Ammonia Gas Sensor

MQ137 Ammonia Gas Sensor

Semiconductor

Good sensitivity to NH3

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MQ136 Gas Sensor for Hydrogen Sulfide

MQ136 Gas Sensor for Hydrogen Sulfide

Semiconductor

Good sensitivity to H2S

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MQ135 Semiconductor Sensor for Air Quality

MQ135 Semiconductor Sensor for Air Quality

Semiconductor

Good sensitivity to toxic gas

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MQ131 Ozone Gas Sensor (Low Concentration)

MQ131 Ozone Gas Sensor (Low Concentration)

Semiconductor

Good sensitivity to O3

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MQ131 Ozone Gas Sensor (High Concentration)

MQ131 Ozone Gas Sensor (High Concentration)

Semiconductor

Good sensitivity to O3

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MQ-9B Semiconductor Sensor for Carbon Monoxide

MQ-9B Semiconductor Sensor for Carbon Monoxide

Semiconductor

Good sensitivity to CO

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ANY QUESTIONS?

Frequent Asked Questions

Professional manufacturer of gas sensors, global sensing solutions provider with over 30 years of experience. Top quality guarantee, Excellent service, Customized products, Fast delivery!

Reference lead times: 1-15 days after receiving deposit depending on volume. The actual lead time can be confirmed with Winsen Order Processing Dept.

Winsen will recommend the most appropriate way of transportation (express, air, sea, train, etc.) according to customer's requirement on cost and time.

T/T, Paypal, West Union, Credit Card, etc.

MOQ is different depending on product models. Please contact Winsen sales for details.

Customer LOGO and packing design are acceptable.
Customized design and function will be provided without extra charge (including molding fee).

Sample order is acceptable and the fees will be borne by buyer.

Winsen has a complete and strict flow for offline sensors: aging-reject defective-sampling inspection-issue reports-finished ingoing...outgoing.

All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.

ppm: parts per million
ppb: parts per billion
VOL: volume ratio
LEL: lower explosive limit
NDIR: Non-Dispersive Infra-Red

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