Technical Specifications
| Feature | Description |
|---|
| Sensor type |
MQ-7 |
| Gas detected |
Carbon monoxide (CO) |
| Supply voltage |
5V DC |
| Output |
Analog and digital |
| Adjustable sensitivity |
Via adjustment trimmer |
| Detection range |
10 - 1000 ppm |
| Warm-up time |
60 seconds |
| Dimensions |
Standard MQ module size |
| Compatibility |
Arduino, Raspberry Pi, microcontrollers |
Use
The MQ-7 sensor is used to:
- Detect the presence of carbon monoxide (CO) in the air in enclosed spaces, such as homes, offices or vehicles.
- Environmental monitoring projects requiring the detection of toxic gases.
- Build safety and alarm systems to prevent CO poisoning.
- Use in prototypes and automation projects with Arduino or Raspberry Pi.
Advantages
The main advantages of using the MQ-7 sensor include:
- High sensitivity to carbon monoxide: The sensor is designed to detect even low concentrations of CO, with a range of 10-1000 ppm.
- Adjustment trimmer: Allows the sensor's sensitivity to be adjusted to suit the project's specific needs.
- Easy integration: Compatible with development platforms such as Arduino and Raspberry Pi.
- Dual signal: Provides both an analog output for precise readings and a digital output for simple on/off conditions.
- Compact and easy to install: Its standard dimensions make it suitable for various types of electronic and industrial projects.
Note: The sensor requires a warm-up period of about 60 seconds to obtain accurate readings. Prolonged use in humid or excessively dusty environments may affect its performance.
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