Description: MQ-8 Hydrogen Gas Sensor

This sensor module has an MQ-8 as the sensor component and has a protection resistor and an adjustable resistor on-board. The MQ-8 gas sensor is highly sensitive hydrogen and less sensitive to alcohol, and cooking fume. It could be used in gas leakage detection appliance in family and industry. The resistance of the sensor component changes as the concentration of the target gas changes. The MQ-8 series of gas sensors use a small heater inside with an electrochemical sensor. They are sensitive to a range of gasses and are used indoors at room temperature. The output is an analog signal and can be read with an analog input of the Arduino. Analog output voltage with concentration, the higher concentration, the higher voltage. Has long service life and reliable stability. Rapid response recovery features

Specification:

• Input voltage: DC5V
• Power consumption (current) : 150 mA
• AO output: 0.1-0.3 V (pollution-free)
• Highest concentration of voltage: Approx 4 V
• Detection range of alcohol: detection range of 10 ~ 1000 PPM
• Dimensions: 32.5(L) x 20.75(W) x 21.75(H)

Connection mode:

• VCC: Positive (5 v)
• GND: Connect power negative
• DO: TTL switch signal output
• AO: Analog signal output

Applications:

• Suitable for domestic or industrial hydrogen leak on a monitoring device. Are not subject to ethanol vapor, soot, carbon monoxide and other gases interference.

Package Include:

• 1 x MQ-8 Hydrogen Gas Sensor

• Input voltage: DC5V
• Power consumption (current) : 150 mA
• AO output: 0.1-0.3 V (pollution-free)
• Highest concentration of voltage: Approx 4 V
• Detection range of alcohol: detection range of 10 ~ 1000 PPM
• Dimensions: 32.5(L) x 20.75(W) x 21.75(H)