ShenzhenYijiajie Electronic Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 10000pcs/Month |
| Delivery Time | 3-5Workingdays |
| Packaging Details | Standard Box |
| Product model | MQ138 |
| Product Type | Semiconductor Gas Sensor |
| Standard package | bakelite, metal cover |
| Detection gas | Toluene, acetone, ethanol, hydrogen |
| Detection concentration | 5～500ppm |
| Brand Name | Winsen |
| Model Number | MQ138 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 10000pcs/Month |
| Delivery Time | 3-5Workingdays | Packaging Details | Standard Box |
| Product model | MQ138 | Product Type | Semiconductor Gas Sensor |
| Standard package | bakelite, metal cover | Detection gas | Toluene, acetone, ethanol, hydrogen |
| Detection concentration | 5～500ppm | 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
The gas sensing material used in the MQ138 gas sensor is tin dioxide (SnO2), which has a low conductivity in clean air. When there is organic vapor in the environment where the sensor is located, the conductivity of the sensor increases with the increase of the organic vapor concentration in the air. The change in conductivity can be converted into an output signal corresponding to the gas concentration using a simple circuit. The MQ138 gas sensor has high sensitivity to toluene, acetone, ethanol, formaldehyde, and is ideal for monitoring hydrogen and other organic vapors. This sensor can detect a variety of organic vapors and is a low-cost sensor suitable for a variety 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 toluene)≥2 |
| Output voltage | △Vs 0.5V (in 50ppm toluene) |
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 HONEYWELL pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV se... 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 HONEYWELL pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV se...
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