MQ-3 Gas Sensor View larger

MQ-3 Gas Sensor

This semiconductor gas sensor detects the presence of LPG, isobutane, and propane at concentrations from 300 to 10,000 ppm. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.

More details

New

7.00 JD

Specifications:

  •  Indication of the signal output. 
  •  Dual signal output (analog output, and TTL level output) 
  •  TTL output signal is low. (When low output signal light, and can be connected directly to the microcontroller) 
  •  0 ~ 5V analog output voltage, the higher the concentration, the higher the voltage. 
  •  Liquefied petroleum gas, natural gas, city gas, better sensitivity. 
  •  Has a long life and reliable stability 
  •  Fast response and recovery characteristics 


Applications
Liquefied petroleum gas, natural gas, coal gas monitoring device suitable for home or industrial. Excellent resistance to alcohol, smoke interference ability.

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