Description
Description
The MQ-7 Carbon Monoxide Gas Sensor Module is designed for detecting CO concentrations in ambient air. It integrates the MQ-7 sensing element with onboard protection circuitry and an adjustable potentiometer for threshold calibration. Operating at 5V DC, the module provides both analog output proportional to gas concentration and TTL digital output for direct interfacing with microcontrollers. With a detection range of 1001000 ppm and fast response characteristics, it is suitable for safety monitoring, air quality systems, and embedded gas detection applications.
Features
- MQ-7 semiconductor CO sensing element
- Detection range 1001000 ppm CO
- Dual output Analog and TTL digital
- Analog output 0.10.3V typical
- Digital output 0.15V TTL level
- Adjustable threshold potentiometer
- Onboard protection resistor
- 5V DC operating voltage
- Fast response to CO concentration changes
- Suitable for microcontroller interfacing
- Compact PCB design 30 19 mm
- Designed for safety monitoring systems
Specifications
- Operating Voltage: 5V DC
- Operating Current: 150mA
- Detection Gas: Carbon Monoxide (CO)
- Detection Range: 1001000ppm
- Analog Output Voltage: 0.10.3V typical
- Digital Output Voltage: 0.15V TTL level
- Sensor Type: Semiconductor MQ-7
- Board Dimensions: 30 19 15mm
- Output Type: Analog and Digital
- Preheat Time: 24 hours recommended
- Operating Temperature: 10C to 50C
- Operating Humidity: 95% RH
Links
- MQ-7 Datasheet
- MQ-7 3D Model
- MQ Gas sensor 3D Case
Tutorials
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How to use a MQ-7 carbon monoxide detector module
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