Gas Sensors

The CCS811 Air Quality Breakout is a digital gas sensor solution that senses a wide range of Total Volatile Organic Compounds (TVOCs), including equivalent carbon dioxide (eCO2) and metal oxide (MOX) levels. VOCs are often categorized as pollutants and/or sensory irritants and can come from a variety of sources like construction materials (paint, carpet, etc.), machines (copiers, processors, etc.) and even people (breathing, smoking, etc.). This breakout is intended for indoor air quality monitoring in personal devices such as watches and phones, but we ve put it on a breakout board so you can use it as a regular I2C device.

The MQ-135 air quality sensor is extremely sensitive to ammonia, sulfide, bernze, smoke, and other harmful gas. The resistance of the sensitive component changes as the concentration of the gas changes making it ideal for air quality control applications. The tested co0ncentration range from 10 to 1000ppm.

The MQ-5 gas sensor is a gas sensor which can detect LPG, natural and town gases. The resistance of the sensitive component changes as the concentration of the gas changes making it ideal for gas leakage applications.

The MQ-9 gas sensor is a gas sensor which can detect carbon monoxide, coal, and liquefied gases. The resistance of the sensitive component changes as the concentration of the gas changes making it ideal for gas leakage applications.

This semiconductor gas sensor detects the presence of methane (CNG) gas at concentrations from 300 ppm to 10,000 ppm, a range suitable for detecting gas leaks. The sensor s simple analog voltage interface requires only one analog input pin from your microcontroller.

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.

This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 1,000 ppm and combustible gas from 100 to 10,000 ppm. The sensor s simple analog voltage interface requires only one analog input pin from your microcontroller.