Characteristic:

• Quick response features.
• With long life and reliable stability.
• Main chip: Sensor MQ-135 Air Quality Sensor.
• Double output: Analog output and TTL level output.
• High sensitivity to Ammonia (NH3), Nitrogen Oxides (NOx), Alcohol, Sulphides, Benzene (C6H6), Carbon Monoxide (CO), smoke, and other harmful gases.
• Module mounted with connection pins.
• Sensitivity is adjustable with the potentiometer.
• DO digital output
• AO analog output
• Weight: 10g
• Size: 32mm x 22mm x 24mm.