The keyestudio MQ-5 Gas Sensor is a highly sensitive gas detection device designed to accurately identify various combustible gases, including natural gas and propane. Utilizing SnO₂ as its sensitive material, this sensor increases its electrical conductivity in the presence of combustible gases, providing reliable readings under varying conditions.
Key Features
- High Sensitivity: Effective detection of liquefied gases, natural gas, and city gas, with minimal response to ethanol and smoke.
- Wide Detection Range: Capable of detecting gas concentrations from 50 to 10,000 ppm.
- Quick Response Time: Responds to gas concentrations in under 10 seconds for immediate action.
- Stable and Durable: Designed with a long lifespan and excellent stability for consistent performance.
- Anti-Alcohol and Anti-Smoke: Ideal for applications requiring resistance to alcohol and smoke interference.
Technical Specifications
- Heating Voltage (Vh): AC or DC 5 ± 0.5V
- Operating Voltage: 5V
- Load Resistance (Rl): 2kΩ
- Resistance in Clean Air (Ra): ≤ 4000 kΩ
- Sensitivity (S): (S/Ra) ≥ 4 (in 1000 ppm C4H10)
- Response Time: ≤ 10 seconds
- Recovery Time: ≤ 30 seconds
- Detection Range: 50 - 10,000 ppm
Applications
- Gas Leak Detection: Essential for safety in residential and industrial settings, monitoring for gas leaks.
- Environmental Monitoring: Useful in projects assessing air quality and gas concentrations in different environments.
- Safety Devices: Can be integrated into alarm systems for immediate alerts on dangerous gas levels.
- Educational Projects: Perfect for learning about gas detection and sensor technologies.
Connection Diagram
Sample Code
/* AnalogReadSerial
Reads an analog input on pin 0, prints the result to the serial monitor
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
}
void loop() {
int sensorValue = analogRead(A0);
Serial.println(sensorValue, DEC);
} |
Conclusion
The keyestudio MQ-5 Gas Sensor is a versatile and reliable solution for detecting combustible gases such as natural gas and propane. With its high sensitivity, quick response time, and broad applications, it is suitable for both professional installations and DIY projects. Enhance safety and monitoring capabilities with this indispensable gas sensor!