MQ-2 Sensor
The gas sensor (MQ2) is useful for gas leakage detection (home and industry). It is suitable for detecting H2, LPG, CH4, CO, Alcohol, Smoke, or Propane. Due to its high sensitivity and fast response time, measurements can be taken as soon as possible. The sensitivity of the sensor can be adjusted by a potentiometer.
- Estimated Delivery : Up to 4 business days
- Free Shipping & Returns : On all orders over $200
General Description:
The gas sensor (MQ2) is useful for gas leakage detection (home and industry). It is suitable for detecting H2, LPG, CH4, CO, Alcohol, Smoke, or Propane. Due to its high sensitivity and fast response time, measurements can be taken as soon as possible. The sensitivity of the sensor can be adjusted by a potentiometer.
Working Principle:
The MQ-2 gas sensor employs a tin dioxide (SnO2) based sensing element, heated for optimal performance. In the presence of oxygen, the sensor’s surface is coated with oxygen ions, hindering electron flow and maintaining a high resistance state. When exposed to reducing gases, these oxygen ions are consumed, leading to a decrease in the sensor’s resistance and enabling current flow. This change in conductivity is proportional to the concentration of the gas, allowing for the quantification of gas levels based on the sensor’s output voltage.
Specifications:
1. Having an IC chip LM393 voltage comparator.
2. Operating Voltage (VCC) is 3v-5v.
3. It has the signal output indicating led.
4. Having the dual signal output (analog and TTL output).
5. Long working life and stable performance by MQ-2.
6. It is highly sensitive to Gas Methane (CNG) detectors.
7. Operating Temperature: -10°C to 50°C.
Requirements
| S. No. | Component Name | Values |
|---|---|---|
| 1 | LM393 (Voltage Comparator) IC | |
| 2 | MQ-2 Gas Sensor | |
| 3 | Resistors | 472 |
| 4 | Capacitors | 106,104,105 |
| 5 | Male connectors | 4 |
| 6 | Variable potentiometer | 10k |
| 7 | Inductor | 100uH |
Pin configuration:
| S. No. | Pins | Pin Description |
|---|---|---|
| 1 | SIG | Output pin |
| 2 | NC | No connection |
| 3 | VCC | Input voltage (3V to 5V) |
| 4 | GND | ground |
Applications:
1. Gas leakage detection.
2. Toys.
3. IoT Applications.
4. Smart Detections.
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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
- Returned items must be unused, undamaged, and in the same condition as received.
- Original tags, labels, and packaging must be intact and included with the returned item.
- Proof of purchase, such as your order confirmation or receipt, is required for all returns.
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