ShenzhenYijiajie Electronic Co., Ltd.
| Product model | MQ138 |
| Detection concentration | 5～500ppm |
| Product Type | Semiconductor Gas Sensor |
| Detection gas | Toluene, ethanol, hydrogen |
| Standard package | bakelite, metal cover |
| Payment Terms | L/C, D/A, D/P, T/T, , |
| Supply Ability | 10000pcs/Month |
| Delivery Time | 3-5Workingdays |
| Packaging Details | Standard Box |
| Brand Name | Winsen |
| Model Number | MQ138 |
| Place of Origin | China |
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Product Specification
| Product model | MQ138 | Detection concentration | 5～500ppm |
| Product Type | Semiconductor Gas Sensor | Detection gas | Toluene, ethanol, hydrogen |
| Standard package | bakelite, metal cover | Payment Terms | L/C, D/A, D/P, T/T, , |
| Supply Ability | 10000pcs/Month | Delivery Time | 3-5Workingdays |
| Packaging Details | Standard Box | Brand Name | Winsen |
| Model Number | MQ138 | Place of Origin | China |
| High Light | MQ138 Organic Vapor Sensor ，Clean Air Organic Vapor Sensor ，Conductivity Organic Vapor Sensor | ||
MQ138 Organic Vapor Sensor Conductivity In Clean Air
Sensitive material of MQ138 gas sensor is SnO2, which with lower conductivity in clean air. When VOC gas exists, the sensor’s conductivity gets higher along with the gas concentration rising. Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.
MQ138 gas sensor has high sensitivity to alcohol,methanol,also can monitor hydrogen and other organic vapour well. It can detect kinds of organic gases and is a kind of low-cost sensor for kinds of applications.
Specification Sheet:
| Loop voltage | Vc 5.0V±0.1V DC |
| Heating voltage | VH 5.0V±0.1V AC or DC |
| Load resistance e | RL adjustabl |
| Heating resistance | RH 30Ω±3Ω (room temperature) |
| Heating power consumption | PH ≤950mW |
| Sensitivity | Rs(in air)/Rs(in 50ppm )≥2 |
| Output voltage | △Vs 0.5V (in 50ppm) |
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2006
Total Annual:
900000-1000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph... Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph...
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