The MCO Home PM2.5 Sensor Air Quality Monitor (12V) monitors fine dust particles (PM2.5), temperature, and humidity to ensure a healthy indoor environment. It alarms for poor air quality and integrates with Z-Wave to automate ventilation systems. Features: PM2.5 detection (0-999.9 µg/m³), modern glass touch surface, wall-mounted design, 12VDC power, and Z-Wave Plus.