Product description
MQ-8 sensor module for hydrogen (H₂). The sensitive material in the MQ-8 gas sensor is SnO2, which has low conductivity in clean air. When the target gas is present, the sensor’s conductivity increases with the gas concentration. A simple electronic circuit can be used to convert this change in conductivity into a corresponding output signal representing the gas concentration.
Specifications:
- High sensitivity to hydrogen (H₂)
- Adjustable sensitivity
- Supply voltage: 5 V
- Power: 900 mW (the sensor becomes hot during operation)
- Detection range: 100–1000 ppm
- Both digital and analog output
- Dimensions: 52 × 20 × 18 mm
Applications:
- Hydrogen leak detection in laboratories, test environments, and research facilities
- Safety systems in hydrogen-based energy systems, for example fuel cells and during electrolysis
- Monitoring of hydrogen in battery charging environments (lead-acid batteries may emit H₂ during charging)
- Industrial applications where hydrogen is used or produced
- Education, prototyping, and development projects in sensor technology and gas detection
Pin connections:
- AO: Analog output
- DO: Digital output
- GND: Ground
- VCC: 5 V supply voltage
