MQ-135 (Air Quality Hazardous Gas Sensor) Module

From the shop's description

MQ-135 (Air Quality Hazardous Gas Sensor) Module is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. The MQ-135 gas sensor senses gases like ammonia nitrogen, oxygen, alcohols, aromatic compounds, sulfide, and smoke. The boost converter of the chip MQ-3 gas sensor is PT1301. The operating voltage of this gas sensor is from 2.5V to 5.0V. The MQ-3 gas sensor has a lower conductivity to clean the air as a gas sensing material. In the atmosphere, we can find polluting gases, but the conductivity of the gas sensor increases as the concentration of polluting gas increases. MQ-135 gas sensor can be implemented to detect the smoke, benzene, steam, and other harmful gases. It has the potential to detect different harmful gases. The MQ-135 gas sensor is a low co st to purchase. Features Wide detecting scope Fast response and High sensitivity Stable and long life Operating Voltage is +5V Detect/Measure NH3, NOx, alcohol, Benzene, smoke, CO2, etc. Analog output voltage: 0V to 5V Digital output voltage: 0V or 5V (TTL Logic) Preheat duration 20 seconds Can be used as a Digital or analog sensor The Sensitivity of Digital pin can be varied using the potentiometer MQ135 Air Quality Sensor Module datashee It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.