The HKD MQ7 Carbon Monoxide Gas Sensor Module is a highly sensitive and efficient sensor designed for detecting carbon monoxide (CO) gas in the air. With a detection range of 10-1000 ppm, this module is widely used in home safety systems, industrial environments, underground operations, and Arduino-based projects.
The module provides both analog (AO) and digital (DO) outputs, allowing easy integration with microcontrollers, alarms, and monitoring systems. Its sensitive resistance (2K -20K at 100 ppm CO) enables accurate measurement, while the built-in power and signal indication LEDs simplify status monitoring during operation.
Built with a high-quality double-layer PCB, the MQ7 offers reliable stability, long service life, and fast response time, making it a trusted component for gas detection and safety monitoring. Compact and easy to use, it is perfect for DIY electronics and professional safety applications alike.
Features & Specifications
- Sensor Type: MQ7 Carbon Monoxide Gas Sensor Module
- Input Voltage: DC 5V
- Power Consumption: ~150mA
- Outputs:
DO (Digital Output): TTL 0/1 (0.1-5V)
AO (Analog Output): 0.1-0.3V in clean air, rising with CO concentration - Detection Range: 10-1000 ppm CO gas
- Characteristic Sensitivity: 100 ppm CO, 2K -20K resistance
- Module Size: 32 × 20 × 22 mm (L × W × H)
- Indicators: Power LED & digital output status LED
- Build: High-quality double panel design for stability
- Applications: CO detection in homes, factories, underground sites, Arduino & microcontroller projects
What's in the box
1 x HKD MQ7 Carbon Monoxide Gas Sensor Module | CO Detection 10-1000ppm Arduino
