The keyestudio MQ-4 Gas Sensor is an advanced detection device designed for household and industrial applications. It effectively detects natural gas and methane, making it essential for gas leakage monitoring. With its wide detection range and high sensitivity, this sensor ensures reliable performance in various environments.
Key Features
- Wide Detection Range: Capable of detecting gas concentrations from 300 to 10,000 ppm.
- High Sensitivity: Provides accurate detection of natural gas and methane, ensuring safety.
- Quick Response Time: Detects gas leaks in under 10 seconds, allowing for immediate action.
- Long Service Life: Designed for durability with excellent stability over time.
- Simple Drive Circuit: Easy to integrate into existing systems for various applications.
Specification
- Detection Range: 300 ~ 10000ppm
- Characteristic Gas: 5000ppm methane
- Sensitivity: R in air/R in typical gas≥5
- Resistance of Sensitive Material: 1KΩ～20KΩ in 5000ppm methane
- Response Time: ≤10s
- Recovery Time: ≤30s
- Heating Resistance: 31Ω±3Ω
- Heating Current: ≤180mA
- Heating Power: ≤900mW
- Heating Voltage: 5.0V±0.2V
- Measuring Voltage: 5V
Working condition of MQ-4:
- Environment Temperature: -20℃～+55℃
- Humidity: ≤95%RH
- Environment Oxygen Content: 21%
Storage condition of MQ-4:
- Temperature: -20℃～+70℃
- Humidity: ≤70%RH
Applications
- Gas Leak Detection: Essential for safety in residential and commercial buildings.
- Industrial Safety: Used in factories and industrial settings to monitor gas levels.
- Environmental Monitoring: Suitable for projects assessing air quality and gases in various settings.
- Home Automation: Can be integrated into smart home systems for gas leak alerts.
Connection Diagram
Sample Code
///Arduino Sample Code
void setup()
{
Serial.begin(9600); //Set serial baud rate at 9600 bps
}
void loop()
{
int val;
val=analogRead(0);//Read Gas value from analog 0
Serial.println(val,DEC);//Print the value to serial port
delay(100);
} |
Conclusion
The keyestudio MQ-4 Gas Sensor is a reliable solution for detecting natural gas and methane leaks. With its high sensitivity, quick response time, and broad applications, it is perfect for both professional installations and DIY projects. Enhance safety measures and ensure reliable gas detection with this essential sensor!