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
  • Read More
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)
  • Read More
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 information or email us sales@winsensor.com

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

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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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