MQ-7 Gas Sensor Module - Carbon Monoxide
The MQ-7 is a handy breakout board that measures carbon monoxide in the air with great accuracy, tracking levels from 20 up to 2000 ppm. As CO levels rise, the sensor's internal resistance drops, sending an analog signal that development boards like an Arduino can easily read.The MQ-7 is a handy breakout board that measures carbon monoxide in the air with great accuracy, tracking levels from 20 up to 2000 ppm. As CO levels rise, the sensor's internal resistance drops, sending an analog signal that development boards like an Arduino can easily read.
This is a crucial safety tool because carbon monoxide is invisible and deadly. Since it's produced by various engines and machines, it can quickly accumulate to dangerous levels in sealed areas like workshops or basements—and even breathing it in during heavy traffic can impact your health. The MQ-7 serves as a quick-acting alarm to keep people safe, and it comes with convenient extras like a sensitivity adjustment screw to make wiring and coding it a breeze.
Features
- Model: MQ-7
- Technology: Semiconductor gas sensor
- Power Requirement: 5V input
- Enclosure Style: Standardized plastic cap
- Primary Target: Carbon Monoxide
- Detection Threshold: 20 - 2000 parts per million (ppm)
Typical use
If you need to keep tabs on carbon monoxide, the MQ-7 sensor module is a great investment. It is perfect for spaces where toxic exhaust or fumes can trap easily—like garages, workshops, labs, or basements. It is also fantastic for science projects, letting you measure exactly how much CO gas a specific reaction produces. Because you can wire it right into an Arduino or other development board, you don't even need to stay in the room; the sensor will log all the data automatically while you work on something else.
What's in the box?
1 X MQ-7 sensor module
Resources
Analog to Digital converter not included
Wiki
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Availability:
Out of Stock
- Model: MQ7 Carbon Monoxide
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Brand:
