Specifications:

• Sensor Type: MQ-8 Hydrogen Gas Sensor
• Target Gas: Hydrogen (H)
• Detection Range: Approx. 10010,000 ppm hydrogen
• Operating Voltage: 5V DC
• Interface:
  • Analog Output (AO)
  • Digital Output (DO)
• Heater Voltage: 5V 0.1V
• Heater Power Consumption: 900mW
• Preheating Time: Recommended 20 seconds or more (longer preheat improves accuracy)
• Operating Temperature: -10C to +50C
• Humidity Range: 95% RH
• Sensor Resistance: Adjustable depending on gas concentration
• Module Size: Approx. 32 20 mm

Pin Description:

• VCC 5V power supply
• GND Ground
• AO Analog gas concentration output
• DO Digital threshold output