Specifications:

• Good sensitivity to CO / Combustible Gas
• High sensitivity to Methane, Propane and CO
• Long life
• Low cost
• On-board LED indicator
• Both digital and analog outputs
• 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 )
• There are four screw holes for easy positioning ;
• Product dimensions : 32x20x22mm
• Has a long life and reliable stability
• Rapid response and recovery characteristics

Package:

1x MQ-9 Gas Sensor