Product Description
The MQ-5 sensor is a device that detects gas leaks in consumer and industrial applications. It can sense LPG, natural gas, and coal gas, but it does not respond to alcohol, cooking fumes, or cigarette smoke. The sensor’s sensitivity can be adjusted by a potentiometer.
The MQ-5 sensor uses SnO2 as a sensitive material, which has low conductivity in clean air. When combustible gas is present, the conductivity of the sensor increases with the gas concentration. A simple electric circuit can convert the conductivity change to an output signal that indicates the gas concentration.
The MQ-5 sensor is highly sensitive to methane, propane, and butane. It can detect both methane and propane, but it is especially good at sensing methane. The sensor is low-cost and suitable for various applications.
Connections
VCC ↔ 2.5V ~ 5.0V
GND ↔ ground
Aout ↔ MCU.IO (analog output)
Dout ↔ MCU.IO (digital output)Â
FeaturesÂ
- This device can detect LPG, natural gas, and town gas with high accuracy.
- It has low sensitivity to alcohol and smoke, which reduces false alarms.
- It is durable and reliable, and does not require frequent maintenance.
- It can be easily operated with a simple circuit.
- It responds quickly to gas leaks.
Package Includes
- 1 x MQ-5 Methane LPG Liquid Propane Gas Sensor Module
Shailendra Singh (verified owner) –