Description:
The MQ-7 Carbon Monoxide (CO) Gas Sensor Module is a high-performance sensor designed to detect carbon monoxide (CO) concentrations in the air. It provides both analog and digital outputs and is capable of detecting CO levels ranging from 10 to 10,000 ppm. The module features adjustable sensitivity, making it easy to integrate into various applications, such as carbon monoxide detection systems, home safety monitors, and environmental monitoring projects. The sensor is well-suited for use with microcontrollers like Arduino.

The MQ-7 sensor operates over a wide temperature range from -10°C to 50°C and consumes less than 150 mA at 5V, ensuring energy-efficient operation. It is built to last with reliable stability, and the module offers fast response and recovery characteristics for quick detection of CO concentrations.

Features:

• Wide Detection Range: Measures CO concentrations from 10 to 10,000 ppm.

• Analog and Digital Outputs: Provides both analog output (voltage) and digital output for easy integration with controllers.

• Adjustable Sensitivity: Easily adjust the threshold for digital output using the onboard preset.

• Temperature Range: Operates in temperatures from -10°C to 50°C.

• Low Power Consumption: Consumes less than 150 mA at 5V.

• Long Service Life: Built for durability with reliable stability.

• Fast Response and Recovery: Quick detection and recovery time for accurate CO measurements.

Product Specifications:

• Operating Voltage: 5V

• Operating Current: <150mA

• CO Detection Range: 10 to 10,000 ppm

• Temperature Range: -10°C to 50°C

• Output Types: Analog (Voltage) and Digital (TTL)

• Sensor Material: SnO2 (Tin Oxide)

• Standard Test Conditions:

  • Temperature: 20°C ± 2°C

  • Humidity: 65% ± 5% RH

  • Test Circuit: Vc = 5.0V ± 0.1V, Vh(high) = 5.0V ± 0.1V, Vh(low) = 1.5V ± 0.1V

Wire Connections:

• VCC: Positive pole (5V)

• GND: Ground

• AOUT: Analog output (for gas concentration readings)

• DOUT: Digital output (TTL, for triggering actions)

Applications:

• Carbon Monoxide Detection: Ideal for home safety systems, carbon monoxide alarm systems, and environmental monitoring.

• Industrial Applications: Used in industrial CO detection and hazardous gas monitoring.

• Portable Detectors: Suitable for use in portable CO detectors for safety.