MQ 8 GAS SENSOR
The MQ-8 is a hydrogen gas sensor, part of the MQ series of gas sensors. It detects hydrogen (H₂) concentration in the air and provides an analog output proportional to the gas concentration.
Features & Specifications of MQ8 Hydrogen H2 Gas Sensor Module:
5V operation
LEDs for output and power
Output sensitivity adjustable
Analog output 0V to 5V
Digital output 0V or 5V
Low Cost
Fast Response
Stable and Long Life
Both Digital and Analog Outputs
Gas Type: Specifically sensitive to hydrogen gas (H₂).
Sensitivity: Highly sensitive to hydrogen, with the ability to detect concentrations as low as 1000 ppm.
Sensor Type: Metal Oxide Semiconductor (MOS) sensor.
Operating Voltage: 5V DC.
Heater Resistance: Approximately 33Ω ± 20% at 20°C.
Load Resistance: Typically around 10KΩ, adjustable based on required sensitivity.
Temperature Range: -20°C to +50°C.
Humidity Range: 10% to 95% relative humidity.
Output: Provides an analog output voltage that varies based on gas concentration (0 to 5V).
Response Time: Typically less than 10 seconds.
Recovery Time: Usually less than 30 seconds.
Dimensions: Approximately 32mm (length) × 20mm (width) × 20mm (height).
Applications:
Hydrogen gas detection in industrial environments or safety systems.
Monitoring hydrogen leaks in fuel cells or storage systems.
