MQ7 Carbon Monoxide Detector Sensor Compatible with Arduino

Name: MQ7 Carbon Monoxide Detector Sensor Compatible with Arduino
Brand: satkit
SKU: Q030303-MQ7-CO2-
Price: 3.44 EUR
Availability: InStock

Brand: satkit

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3.44€

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The MQ7 Carbon Monoxide CO Detector Sensor is a module designed to detect the concentration of carbon monoxide (CO) in the air, and is fully compatible with Arduino. This sensor is an essential tool for electronics projects that require gas monitoring and environmental safety.

The MQ-7 is easy to use and offers accurate detection of CO gas in a concentration range of 10 to 1000 parts per million (ppm). Its sensitivity can be adjusted using a potentiometer integrated on the board, allowing the sensor to be calibrated according to the specific needs of the project.

Main features

Compatibility: Fully compatible with Arduino platforms for easy integration into electronics projects.
Detection range: Detects carbon monoxide concentrations between 10 and 1000 ppm.
Analogue interface: Provides analogue output for simple and direct reading.
Power supply: Operates at 5V and draws 140 mA.
Fast response time: Response in approximately 1 ms, ideal for real-time monitoring.
Compact size: Dimensions of 40x20 mm make it easy to integrate into different devices and projects.
Adjustable potentiometer: Allows sensitivity calibration to suit different environmental conditions.

Technical specifications

Supply voltage: 5V
Current: 140 mA
Interface type: Analogue
Pinout: 1 - output, 2 - GND, 3 - VCC
Detection range: 10 to 1000 ppm of carbon monoxide
Response time: 1 ms
Size: 40 x 20 mm

Typical uses

This sensor is ideal for air quality monitoring projects, safety systems for toxic gas detection, and educational applications in electronics and programming with Arduino. Its accuracy and ease of use make it suitable for developers, students and professionals looking to measure CO concentration in enclosed or industrial environments.

Compatibility

The MQ7 sensor is compatible with any Arduino board that accepts analogue inputs, making it easy to integrate into DIY projects and prototypes. It does not require complex additional components for basic operation.

Compatible with Arduino for easy integration into projects.
Detects carbon monoxide in ranges from 10 to 1000 ppm.
Analogue output for simple reading.
5V power supply and 140 mA consumption.
Fast 1 ms response time.
Adjustable potentiometer for sensitivity calibration.
Compact 40x20 mm size.

Customer Questions & Answers

What are the dimensions and weight of the MQ-7 module, and what exactly is included in the package?

The module measures 40 mm x 20 mm. Approximate weight is under 20 g. The package generally includes only the sensor and its base board, without cables or additional accessories. It is advisable to confirm with the seller if extra items are needed for installation.

What connection and power requirements does it have? Can I use it directly with a Raspberry Pi?

The MQ-7 requires a 5 V supply and consumes approximately 140 mA. It has 3 pins: VCC (5V), GND and analogue output. It can be connected to a Raspberry Pi using an external analogue-to-digital converter, as the Pi does not have native analogue inputs.

What is the basic calibration procedure and what tolerances should I consider in the measurement?

Calibration is carried out by adjusting the module's potentiometer in a clean environment (air without CO) and optionally with a known CO concentration for greater accuracy. The margin of error may vary depending on temperature, humidity and service life, with typical tolerances of ±10%.

What care or maintenance is recommended to ensure stable and long-lasting sensor operation?

It is recommended to avoid contact with liquids, excessive dust and corrosive gases other than CO. Do not expose it to mechanical shocks and respect the preheating cycles. Typical service life is around 2 years under normal use, although sensitivity may gradually degrade.

Is the MQ7 sensor compatible with all Arduino boards?

Yes, the MQ7 sensor is compatible with any Arduino board that has analogue inputs for reading the sensor.

What is the detection range of the MQ7 carbon monoxide sensor?

The MQ7 sensor can detect carbon monoxide concentrations between 10 and 1000 ppm.

How is the sensitivity of the MQ7 sensor adjusted?

The sensitivity is adjusted using a potentiometer integrated on the sensor board.

What type of output does the MQ7 sensor provide?

The sensor provides an analogue output that can be read directly by Arduino.

What is the voltage and current draw of the MQ7 sensor?

The sensor operates at 5V and consumes approximately 140 mA.