The MQ-7 Digital Carbon Monoxide and Gas Sensor, 33x20 mm Model 7, is a highly reliable solution for accurate detection of carbon monoxide (CO) and other harmful gases in the air. Manufactured by the trusted MQ brand, Model 7 is designed to ensure safety in various environments, including homes, offices, factories, and laboratories. This advanced sensor measures CO concentrations from 10 up to 10,000 parts per million (ppm), making it suitable for both household and industrial applications.
Technical
Specifications
- Brand: MQ
- Model: 7
- Dimensions: 33 x 20 x 22 mm (L x W x H)
- Measurement Range: 10 to 10,000 ppm (CO)
- Operating Voltage: 5 V DC
- Power Consumption: Less than 150 mA
- Operating Temperature: -20°C to +50°C
- Humidity: Up to 95% RH
- Output Type: Digital (TTL) and Analog (voltage varies with concentration)
- Response Time: ≤ 1 second
- Recovery Time: ≤ 30 seconds
- Heating Resistance: ±31 ohm
- Sensitivity: ≥ 3%
- IC Driver: LM393
Key
Features
- Fast response and quick recovery times for real-time monitoring
- High sensitivity for detecting carbon monoxide
- Long service life and stable performance
- Easy interfacing with micro-controllers such as Arduino
- Four mounting holes for secure and flexible installation
- Adjustable digital output threshold using the onboard potentiometer
Use Cases
- The MQ-7 sensor is ideal for gas leakage detection systems in kitchens, factories, laboratories, parking garages, and residential areas. It can be integrated into home automation projects or smart alarm systems, providing early warning against dangerous CO levels and ensuring a safer environment.
Benefits
- Effective protection against carbon monoxide poisoning
- Simple installation and compatibility with various electronic systems
- Operates reliably in demanding environmental conditions
- Affordable price with high performance
Care Instructions
- Install the sensor in a dry area, away from excessive humidity and direct exposure to strong chemicals or gases.
- Periodically clean the sensor surface to maintain measurement accuracy.
- Ensure the sensor is powered with 5 V DC and does not exceed the rated current.
Origin & Compatibility
- The MQ-7 sensor is produced by a reputable manufacturer known for high-quality engineering. It offers dependable performance for environments that require precise and continuous monitoring of toxic gases, making it an essential safety component for homes, offices, industrial sites, and laboratories.
With its robust design and advanced technology, the MQ-7 Carbon Monoxide Sensor provides peace of mind and reliable detection, helping to safeguard lives and property from the invisible dangers of harmful gases.
