MQ2 Smoke LPG Gas Sensor

Description

The MQ-2 gas sensor, mq2 sensor, or MQ-2 smoke sensor operates on a +5V voltage and requires a 20-second preheat before full functionality, with an analog output voltage range of 0 to 5V. It stands out for its ability to detect a wide range of gases, from H2, LPG, CH4, CO, alcohol, and smoke to propane, offering a detection range of 300–10000 ppm.

Primarily used for gas leakage detection in residential and industrial settings, the MQ-2 Gas Sensor Detector Module provides rapid and sensitive gas measurements due to its high sensitivity and quick response time. The sensor’s sensitivity can be easily adjusted using a potentiometer. It functions by utilizing a gas-sensitive material, typically stannic oxide or tin oxide (SnO2), which demonstrates increased conductivity in the presence of flammable gases in the environment.

The MQ-2 gas sensor is a type of gas sensor that operates based on changes in conductivity. It contains a sensing element that interacts with the surrounding gases. When the sensor comes into contact with specific gases, such as liquefied petroleum gas (LPG), propane, hydrogen, and other combustible vapors, the conductivity of the sensing element changes.

The sensor is equipped with a circuit that translates these changes in conductivity into an output signal. This output signal is then used to determine the concentration of the detected gas. The sensor can be interfaced with microcontrollers or other electronic devices to provide information about the presence and concentration of certain gases in the environment.

Feature

1. The MQ-2 smoke sensor operates on +5V with a 20-second preheat.
2. The MQ-2 gas sensor detects a wide range of gases (e.g., methane and propane).
3. Highly sensitive with a fast response time.
4. Utilizes stannic oxide for gas detection.
5. Provides analog output (0–5V) and adjustable sensitivity.
6. It is versatile for various gas detection applications.
7. Durable, cost-effective, and simple to use.
8. Ideal for gas leakage detection and safety applications.

Application

1. Gas Leakage Detection
2. Air Quality Monitoring
3. Fire Detection Systems
4. Gas Appliances Safety