
MEu-H2S Hydrogen Sulfide Gas Sensor
- Hydrogen Sulfide(H2S)
- 0~100ppm
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EC Hazardous Toxic Gas Detection Sensor Module ZE03
- CO,O2,NH3,H2S,NO2,O3,SO2, CL2,HF,H2,PH3,HCL, etc.
- See manual
- Read More

MEu-CO Carbon Monoxide Sensor
- Carbon monoxide(CO)
- 0~1000ppm
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Electrochemical Detection Module ZE12A
- CO, SO2, NO2, O3
- CO (0-10ppm), SO2 (0-1ppm), NO2 (0-1ppm), O3 (0-1ppm)
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MQ136 Gas Sensor for Hydrogen Sulfide
- H2S
- 1-200ppm
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MQ137 Ammonia Gas Sensor
- NH3
- 5-500ppm
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MP-702 Ammonia Gas Sensor
- NH3
- 0-100ppm
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MP-7 Carbon Monoxide GAS SENSOR
- CO
- 50-1000ppm
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GM-102B MEMS NO2 Gas Sensor
- NO2
- 0.1-10ppm
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GM-602B MEMS H2S Gas Sensor
- H2S, Benzene
- 0.5-50ppm
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GM-702B MEMS Carbon Monoxide Gas Sensor
- CO
- 5-5000ppm
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GM-802B MEMS NH3 Gas Sensor
- NH3
- 1-300ppm
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Electrochemical Detection Module ZE11
- benzene,dimethyl benzene,ethylene oxide,chloro ethylene and vinyl benzene etc.
- (0~100)ppm
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Electrochemical Detection Module ZE03G
- CO, H2S, NH3, CL2, SO2, NO2, O2 and other gases
- See manual
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UE-NH3 Electrochemical Gas Sensor
- Ammonia NH3
- 0~100ppm
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ME3-H2S Hydrogen Sulfide Gas Sensor
- H2S
- 0-100ppm, Max 500ppm
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ME3-NH3 Gas Sensor
- NH3
- 0-100ppm, Max 200ppm
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ME3-CO Carbon Monoxide Gas Sensor
- CO
- 0-1000ppm, Max 2000ppm
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ME3-SO2/HCL Gas Sensor
- SO2, HCL
- 0-20ppm, SO2 Max 150ppm, HCL Max 200ppm
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ME3-HF Gas Sensor
- HF
- 0-10ppm, Max 100ppm
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ME3-NO2 Electrochemical Gas Sensor
- NO2
- 0-20ppm, Max 150ppm
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ME3-CL2 Gas Sensor
- CL2
- 0-10ppm, Max 100ppm
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ME3-HCL gas sensor
- HCL
- 0~20ppm
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ME3-PH3 Gas Sensor
- PH3
- 0-10ppm, Max 20ppm
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ME3-HCN Hydrogen Cyanide Sensor
- HCN
- 0-100ppm, Max 150ppm
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ME3-C8H8 Electrochemical Gas Sensor
- C8H8
- 0~100ppm
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ME3-CH4S Electrochemical Gas sensor
- CH4S
- 0~100ppm
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ME3-C2H6S2 Electrochemical Gas Sensor
- C2H6S2
- 0~100ppm
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ME3-C3H9N Electrochemical Gas Sensor
- C3H9N
- 0~100ppm
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ME3-C2H6S Electrochemical Gas Sensor
- C2H6S
- 0~100ppm
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ME3-CS2 Electrochemical Gas Sensor
- CS2
- 0~100ppm
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ME3-C2H4 Electrochemical Gas Sensor
- C2H4
- 0-100ppm, Max 200ppm
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ME3-O3 Gas Sensor
- O3
- 0-10/20ppm, Max 50/100ppm
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ME3-C6H6 Gas Sensor
- C6H6
- 0-100ppm, Max 500ppm
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ME3-C2H3Cl Electrochemical Gas Sensor
- C2H3Cl (chloroethylene)
- 0~20ppm
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ME3-ETO Gas Sensor
- C2H4O
- 0-20ppm, Max 100ppm
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ME3-C7H8 Gas Sensor
- C7H8
- 0-500ppm, Max 1000ppm
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ME4-CO-E4 Carbon Monoxide Gas Sensor
- CO
- 0-1000ppm, Max 2000ppm
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ME4-CO Carbon Monoxide Gas Sensor
- CO
- 0-1000ppm, Max 1500ppm
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ME4-SO2 Sulfur Dioxide Gas Sensor
- SO2
- 0-20ppm, Max 200ppm
- Read More

ME4-NH3 Ammonia Gas Sensor
- NH3
- 0-50ppm, Max 200ppm
- Read More

ME4-H2S Hydrogen Sulfide Gas Sensor
- H2S
- 0-100ppm, Max 500ppm
- Read More

ME4-NO2 Nitrogen Dioxide Gas Sensor
- NO2
- 0-20ppm, Max 150ppm
- Read More

ME4-Cl2 Chlorine Gas Sensor
- CL2
- 0-20ppm, Max 100ppm
- Read More

ME4-ETO Ethylene Oxide Gas Sensor
- C2H4O
- 0-20ppm, Max 100ppm
- Read More
Help you compare our sensors
Table Overview for Winsen Toxic 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 |
---|---|---|---|---|---|
![]() MEu-H2S |
Electrochemical | Excellent repeatability and stability | Hydrogen Sulfide(H2S) | 0~100ppm | |
![]() ZE03 |
Module, electrochemical | Supply UART output and analog voltage output; Use for portable and fixed gas detector, various gas detection equipment and occasion. | CO,O2,NH3,H2S,NO2,O3,SO2, CL2,HF,H2,PH3,HCL, etc. | See manual | ø23.5mm*24.5mm |
![]() MEu-CO |
Electrochemical | Excellent repeatability and stability | Carbon monoxide(CO) | 0~1000ppm | |
![]() ZE12A |
Module, electrochemical | City atmospheric environmental monitoring , enterprise environment monitoring, Factory area unorganized emission monitoring, emergency monitoring, environment evaluation monitoring, Portable gas detector, various gas detection equipment and smart home ap | CO, SO2, NO2, O3 | CO (0-10ppm), SO2 (0-1ppm), NO2 (0-1ppm), O3 (0-1ppm) | Φ39×44 mm |
![]() MQ136 |
Semiconductor | Good sensitivity to H2S | H2S | 1-200ppm | φ19×24.2 |
![]() MQ137 |
Semiconductor | Good sensitivity to NH3 | NH3 | 5-500ppm | φ19×24.2 |
![]() MP-702 |
Semiconductor | High sensitivity to NH3 | NH3 | 0-100ppm | φ9.4×7 |
![]() MP-7 |
Semiconductor | High sensitivity to CO | CO | 50-1000ppm | φ9.4×8 |
![]() GM-102B |
Semiconductor、MEMS | High sensitivity to NO2 gas, small sizes and low power consumption | NO2 | 0.1-10ppm | 5×5×1.55 |
![]() GM-602B |
Semiconductor、MEMS | High sensitivity to H2S | H2S, Benzene | 0.5-50ppm | 5×5×1.55 |
![]() GM-702B |
Semiconductor、MEMS | High sensitivity to CO | CO | 5-5000ppm | 5×5×1.55 |
![]() GM-802B |
Semiconductor、MEMS | High sensitivity to NH3 | NH3 | 1-300ppm | 5×5×1.55 |
![]() ZE11 |
ZE11 Module, electrochemical | Petroleum and chemical industry, environment protection filed, detection of benzene,dimethyl benzene,ethylene oxide,chloro ethylene and vinyl benzene | benzene,dimethyl benzene,ethylene oxide,chloro ethylene and vinyl benzene etc. | (0~100)ppm | Ø32mm*31.2mm |
![]() ZE03G |
Module, electrochemical | Portable and fixed gas detector, various gas detection equipment and situation. | CO, H2S, NH3, CL2, SO2, NO2, O2 and other gases | See manual | ø23.5mm*24.5mm |
![]() UE-NH3 |
Electrochemical | Low consumption, High precision, High sensitivity | Ammonia NH3 | 0~100ppm | |
![]() ME3-H2S |
Electrochemical | Detection of hydrogen sulfide in industrial, underground mining and environmental protection fields | H2S | 0-100ppm, Max 500ppm | φ20×16.4 |
![]() ME3-NH3 |
Electrochemical | Ammonia detection in industrial and environmental protection fields | NH3 | 0-100ppm, Max 200ppm | φ20×16.4 |
![]() ME3-CO |
Electrochemical | Petroleum and petrochemical, metallurgy, mining and other industrial sites and environmental protection fields | CO | 0-1000ppm, Max 2000ppm | φ20×16.4 |
![]() ME3-SO2 |
Electrochemical | Use for SO2 and HCl detection in industrial and environmental protection fields | SO2, HCL | 0-20ppm, SO2 Max 150ppm, HCL Max 200ppm | φ20×16.4 |
![]() ME3-HF |
Electrochemical | Detection of hydrogen fluoride in industrial and environmental protection fields | HF | 0-10ppm, Max 100ppm | φ20×16.4 |
![]() ME3-NO2 |
Electrochemical | Detection of nitrogen dioxide in industrial, underground mining and environmental protection fields | NO2 | 0-20ppm, Max 150ppm | φ20×16.4 |
![]() ME3-CL2 |
Electrochemical | Detection of chlorine gas in chemical, pharmaceutical production and environmental protection fields | CL2 | 0-10ppm, Max 100ppm | φ20×16.4 |
![]() ME3-HCL |
Electrochemical | Low consumption,High precision | HCL | 0~20ppm | |
![]() ME3-PH3 |
Electrochemical | Detection of phosphine in industrial, underground mining and environmental protection fields | PH3 | 0-10ppm, Max 20ppm | φ20×16.4 |
![]() ME3-HCN |
Electrochemical | Detection of hydrogen cyanide in petroleum and petrochemical, pharmaceutical production and environmental protection fields | HCN | 0-100ppm, Max 150ppm | φ20×16.4 |
![]() ME3-C8H8 |
Electrochemical | Low consumption,High precision | C8H8 | 0~100ppm | |
![]() ME3-CH4S |
Electrochemical | Low consumption,High precision | CH4S | 0~100ppm | |
![]() ME3-C2H6S2 |
Electrochemical | Low consumption,High precision | C2H6S2 | 0~100ppm | |
![]() ME3-C3H9N |
Electrochemical | Low consumption,High precision | C3H9N | 0~100ppm | |
![]() ME3-C2H6S |
Electrochemical | Low consumption,High precision | C2H6S | 0~100ppm | |
![]() ME3-CS2 |
Electrochemical | Low consumption,High precision | CS2 | 0~100ppm | |
![]() ME3-C2H4 |
Electrochemical | Use for ethylene detection in industrial and environmental protection fields | C2H4 | 0-100ppm, Max 200ppm | φ20×16.4 |
![]() ME3-O3 |
Electrochemical | Use for O3 detection in industrial and environmental protection fields | O3 | 0-10/20ppm, Max 50/100ppm | φ20×16.4 |
![]() ME3-C6H6 |
Electrochemical | Detection of benzene in industrial and environmental protection fields | C6H6 | 0-100ppm, Max 500ppm | φ20×16.4 |
![]() ME3-C2H3Cl |
Electrochemical | Low consumption,High precision | C2H3Cl (chloroethylene) | 0~20ppm | |
![]() ME3-ETO |
Electrochemical | Detection of ethylene oxide in petroleum and petrochemical, pharmaceutical production and environmental protection fields | C2H4O | 0-20ppm, Max 100ppm | φ20×16.4 |
![]() ME3-C7H8 |
Electrochemical | Detection of toluene in industrial and environmental protection fields | C7H8 | 0-500ppm, Max 1000ppm | φ20×16.4 |
![]() ME4-CO-E4 |
Electrochemical | Urban atmosphere and enterprise environmental monitoring, unorganized emission pollution gas monitoring in factories, emergency monitoring, environmental assessment and monitoring | CO | 0-1000ppm, Max 2000ppm | φ32×14.5 |
![]() ME4-CO |
Electrochemical | Petroleum and petrochemical, metallurgy, mining and other industrial sites and environmental protection fields | CO | 0-1000ppm, Max 1500ppm | φ32×14.5 |
![]() ME4-SO2 |
Electrochemical | Detection of sulfur dioxide in industrial and environmental protection fields | SO2 | 0-20ppm, Max 200ppm | φ32×14.5 |
![]() ME4-NH3 |
Electrochemical | Detection of ammonia in industrial and environmental protection fields | NH3 | 0-50ppm, Max 200ppm | φ32×14.5 |
![]() ME4-H2S |
Electrochemical | Detection of hydrogen sulfide in industrial, underground mining and environmental protection fields | H2S | 0-100ppm, Max 500ppm | φ32×14.5 |
![]() ME4-NO2 |
Electrochemical | Detection of nitrogen dioxide in industrial, underground mining and environmental protection fields | NO2 | 0-20ppm, Max 150ppm | φ32×14.5 |
![]() ME4-Cl2 |
Electrochemical | Detection of chlorine gas in chemical, pharmaceutical production and environmental protection fields | CL2 | 0-20ppm, Max 100ppm | φ32×14.5 |
![]() ME4-ETO |
Electrochemical | Detection of ethylene oxide in petroleum and petrochemical, pharmaceutical and environmental protection fields | C2H4O | 0-20ppm, Max 100ppm | φ32×14.5 |
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WHAT WE DO
Toxic gas sensor Knowledge
The odor and hazardous gases are mainly composed of ammonia, sulfide and methanol, trimethylamine, hydrogen sulfide, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide, styrene, etc. Winsen has gas sensor solutions used in the smell producing sites of agriculture, animals farming, chemical factory, industrial process, urban public infrastructure, etc.