The Aercus Instrument Particulate Matter (PM2.5) Air Quality sensor can be added to as Aercus Instruments WeatherMaster (cannot be used on its own) and measures the quantity of particles 2.5 micrometres or smaller in the air. Up to 4 sensors can be added giving you a great picture of different zones of your home, office or industrial unit. Data can be viewed on your WeatherMaster console, or using the WS-View App.
This can also be used with a 868MHz Ecowitt (or compatible) GW1000 gateway (sold separately). This device is powered with 2x AA 1.2V Ni-MH rechargeable batteries (included), and requires recharging when solar energy is low (upto every 2 weeks)