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MQ-8

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A sensitive material MQ-8 Hydrogen Gas Sensor Module H2 Alarm Detection used in clean air low conductivity tin oxide (SnO2). When there is the environment in which the combustible gas sensor, the conductivity sensor with increasing concentration of combustible gases in the air increases.

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General Description:

A sensitive material MQ-8 Hydrogen Gas Sensor Module H2 Alarm Detection used in clean air low conductivity tin oxide (SnO2). When there is the environment in which the combustible gas sensor, the conductivity sensor with increasing concentration of combustible gases in the air increases.

Working Principle:

A gas sensor can detect the concentration of a specific gas in the air. Depending upon the concentration of the gas, the sensor generates a potential difference by changing the resistance of the sensing element, which can then be measured as the output voltage. MQ-8 hydrogen gas sensor consists of a sensing element which is aluminum-oxide-based ceramic, coated with tin dioxide (SnO2), enclosed in a stainless-steel mesh. In the case of any H2 in the air, the resistivity of the sensing element changes, and the change is measured to get the concentration of the gas present. MQ-8 sensor can detect H2 in the concentration range of 100-1000ppm.

Specifications:

1. This sensor operates with 5V DC.

2. It detects hydrogen concentration within the air.

3. Resistant to smoke, LPG, and alcohol.

4. Power consumption of heater is below 800mW.

5. The range of gas detection ranges from 100 – 1000ppm.

6. Dual signal output.

7. Quick response.

8. Very sensitive to Hydrogen gas.

Requirements

 

S. No. Component Name Values
1 LM393 (Voltage Comparator) IC
2 MQ-8 Gas Sensor
3 Resistors 472
4 Capacitors 106,104,105
5 Male connectors 4
6 Variable potentiometer 10k
7 LED

 

Pin configuration:

 

S. No. Pins Pin Description
1 VCC Input voltage (3V to 5V)
2 GND ground
3 D0 Digital pin
4 A0 Analog pin

Applications:

1. This sensor is used to measure the hydrogen concentration within the air.

2. It detects gas leakages within the industry.

3. The gas sensor is used in mines.

4. Used in AC & refrigerators.

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  • Dispatch: Within 24 Hours
  • Free shipping across all products on a minimum purchase of $99.
  • International delivery time 5 to 7 business days
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  • Easy 30 days returns and exchanges

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  1. Returned items must be unused, undamaged, and in the same condition as received.
  2. Original tags, labels, and packaging must be intact and included with the returned item.
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