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

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, photodiodes, Japan FIGARO, UK CITY, ALPHASENSE full range of semiconductors, catalytic, electrochemical gas sensors, French HUMIREL/MEAS humidity sensors and other international well-known companies authorized agents or distributors, to provide customers with product information, products Solutions, product selection, supply guarantee and logistics services, etc.