MQ-4 Natural Gas( Methane-CH4) Sensor

Module Features:

• Using high-quality dual-panel design, with power indicator and TTL signal output instructions ;
• The switching signal having a DO (TTL) output and analog output AO ;
  TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
• The higher the voltage, the concentration of the analog output voltage is higher.
• For methane, natural gas has a good detection sensitivity.
• There are four screw holes for easy positioning ;
• Dimensions : 32 (L) * 20 (W) * 22 (H)
• Rapid response and recovery characteristics