Gas and Smoke Detector Sensor module for Arduino Projects

Detects dangerous gas and smoke

The MQ-2 is a compact gas and smoke sensor which detects butane, propane, methane, alcohol, hydrogen and smoke. Suitable for home, factory air quality monotoring applications.

 

Specifications:

Dimension: 32 X 22 mm  

Gas Sensor: LM393, MQ-2 

Working voltage: DC 5 V 

 

Features: 

Dual signal output (analog output, and TTL level output) 

TTL output valid signal is low. (Low-level signal can be directly connected to the microcontroller) 

0 ~ 5V analog output voltage, the higher the concentration the higher the voltage. 

High sensitiity to liquefied petroleum gas and natural gas

Long life and reliable stability 

Rapid response and recovery characteristics 

 

 

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