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MQ-9 Sensor

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This MQ-9 Carbon Monoxide, Methane, and LPG Gas Sensor Module can be used to sense Carbon Monoxide and Methane Gas. The sensitive material of the MQ9 gas sensor is SnO2, which with lower conductivity in clean air. It makes detection by the method of cycle high and low temperature and detects CO when the low temperature (heated by 1.5V). The sensor’s conductivity is higher along with the gas concentration rising. When a high temperature (heated by 5.0V), it detects Methane, Propane, etc. combustible gas and cleans the other gases adsorbed under low temperature.

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General Description:

This MQ-9 Carbon Monoxide, Methane, and LPG Gas Sensor can be used to sense Carbon Monoxide and Methane Gas. The sensitive material of the MQ9 gas sensor is SnO2, which with lower conductivity in clean air. It makes detection by the method of cycle high and low temperature and detects CO when the low temperature (heated by 1.5V). The sensor’s conductivity is higher along with the gas concentration rising. When a high temperature (heated by 5.0V), it detects Methane, Propane, etc. combustible gas and cleans the other gases adsorbed under low temperature.

Working Principle:

This MQ9 Smoke Sensor contains a sensing element, mainly aluminum-oxide-based ceramic, coated with Tin dioxide (SnO2), enclosed in a stainless-steel mesh. Whenever gas comes into contact with the sensing element, the resistivity of the element changes. The change is then measured to get the concentration of the gases present. It has a small heating element present which is needed to preheat the sensor to get it in the working window. It can detect LPG, Propene, Hydrogen, Carbon Monoxide, and Methane Gas concentrations. It finds uses in detecting gas leakage in pipelines and alarm applications in case of a gas leak at home as CO is a very harmful gas and can kill a person if present over 300PPM.

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. Reliable and long service life.

9. Very sensitive to Hydrogen gas.

Requirements

 

S. No. Component Name Values
1 LM393 (Voltage Comparator) IC
2 MQ-9 Gas Sensor
3 Resistors 472
4 Capacitors 106,104,105
5 Male connectors 4
6 Variable potentiometer 10k

 

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. The domestic gas leakage detector.

2. Industrial gas detector.

3. Portable gas detector.

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Shipping policy

At our Company, we understand the importance of timely delivery. We offer a variety of shipping options to suit your needs, including standard, expedited, and express shipping. Our dedicated team works diligently to process and dispatch your orders promptly, aiming to deliver them to your doorstep within the estimated timeframe.

We strive to provide fast and reliable shipping to our customers. Here\\\’s everything you need to know about our shipping process:

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

Please note that delivery times are estimates and may vary depending on factors such as product availability, destination, and carrier delay

Returns policy

We want you to be completely satisfied with your purchase from our website. If for any reason you are not entirely happy with your order, we\\\’re here to help. Certain exclusions and conditions may apply, so we encourage you to review our detailed return policy for more information. Rest assured, our goal is to ensure your complete satisfaction with every purchase you make from our website

  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.
  3. Proof of purchase, such as your order confirmation or receipt, is required for all returns.

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