MQ136 MQ-136 Gas Sensor For Hydrogen Sulfide Gas Leakage Alarms
Price:
Negotiable
MOQ:
1PCS
Delivery Time:
5-8 work days
Product Description
MQ136 Gas Sensor For Hydrogen Sulfide Gas Leakage Alarms
Working Principle:
The MQ136 operates based on the principle of gas adsorption on the surface of a semiconductor material. When the target gas (especially H₂S) comes into contact with the heated SnO₂ sensitive layer, the conductivity of the material changes. This change in conductivity is proportional to the concentration of the target gas, which can be converted into a measurable electrical signal through a simple circuit.
Key Features:
- High sensitivity to hydrogen sulfide (H₂S)
- Good selectivity for sulfide gases
- Fast response and recovery times
- Stable performance and long service life
- Simple driving circuit requirements
- Low cost and easy to integrate into detection systems
Applications:
- Hydrogen sulfide gas leakage alarms
- Industrial waste gas monitoring (especially in chemical, petroleum, and sewage treatment industries)
- Portable gas detectors for H₂S
- Indoor air quality monitoring in specific environments
- Mining safety equipment for sulfide gas detection
|
Parameter |
Symbol |
Value |
Unit |
Remarks |
|---|---|---|---|---|
| Heater Voltage | Vh | 5.0V ± 0.1V | - | AC or DC |
| Loop Voltage | Vc | 5.0V ± 0.1V | - | DC |
| Heater Resistance | Rh | 30Ω ± 3Ω | - | At room temperature |
| Heater Power Consumption | Ph | ≤ 900 | mW | - |
| Detection Range | - | 10 - 1000 | ppm | For H₂S |
| Sensitivity | S | Rs (in air) / Rs (in 100ppm H₂S) ≥ 5 | - | - |
| Response Time | T90 | ≤ 10 | s | - |
| Recovery Time | T10 | ≤ 30 | s | - |
| Operating Temperature | - | -10 - 50 | ℃ | - |
| Storage Temperature | - | -20 - 70 | ℃ | - |
| Relative Humidity | - | ≤ 95 | % RH | Non-condensing |
| Pre-heat Time | - | ≥ 48 | hours | For stable performance |
| Service Life | - | ≥ 5 | years | - |
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Company
ShenzhenYijiajie Electronic Co., Ltd.
Location
Room 3306AB 33rd Floor, SEG Plaza,Huaqiang North Road, Futian District, Shenzhen Guangdong Province 518028
Contact Person
Xu