Winsen MQ138 VOC Gas Sensor
An air quality sensor for IAQ monitor applications
- Sensitive Material: SnO2
- Gas Detected: Toluene, acetone, alcohol, methanol, hydrogen, organic vapors
- Applications: Domestic VOC gas alarms, industrial VOC gas leakage alarms, portable VOC gas detectors
- Package Includes: 1 x Winsen MQ138 VOC Gas Sensor
Top Features:
- High sensitivity to various organic gases
- Low-cost sensor for multiple applications
- Simple circuit for gas concentration output signal
- Widely used in different VOC gas monitoring scenarios
The MQ138 gas sensor by Winsen Electronics is designed for IAQ monitor applications. It utilizes SnO2 as its sensitive material, exhibiting lower conductivity in clean air. When VOC gas is present, the sensor's conductivity increases, indicating a rise in gas concentration. Users can easily convert this conductivity change into a corresponding output signal of gas concentration through a basic circuit.
This gas sensor is particularly sensitive to toluene, acetone, alcohol, methanol, hydrogen, and other organic vapors. It offers a cost-effective solution for monitoring various organic gases in different environments. The MQ138 is commonly used in domestic VOC gas alarms, industrial VOC gas leakage alarms, and portable VOC gas detectors.
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