Soldered 333111 Air quality sensor MQ135 breakout
Description
The MQ-135 gas sensor can detect gases such as ammonia (NH3), sulfur (S), benzene (C6H6), CO2, other harmful gases, and smoke. Similar to other MQ gas sensors, this sensor also has digital and analogue output pins. When the concentration of these gases exceeds the set thresholds in the air, the digital pin goes high. These thresholds can be adjusted using the potentiometer. The analogue output pin provides a voltage that can be used to estimate the gas concentration in the atmosphere.
The MQ-135 air quality sensor module operates at 5 V and consumes approximately 150 mA. It requires a short warm-up time to deliver accurate results.
