We spend 90% of our time indoors where the air quality is often 2 to 5 times worse than the air outside. The wireless Airthings View Pollution is a WiFi connected, battery operated monitor, that helps homeowners take control of their exposure to harmful particles from polluted air - as well as also gaining visibility into other indoor air factors, such as humidity and temperature, right on their smart device Features: Three sensors to monitor the air in your home. View Pollution monitors PM 2.5 (particulate matter), humidity and temperature, and also uses outdoor air data to measure your local pollen levels - helping you to safeguard your family’s health and comfort Fight asthma and allergy symptoms with View Pollution. Understand your PM, humidity and local pollen levels, and optimise your air quality to help prevent allergies and asthma Calm tech display. Customisable display or wave in front to view radon and air quality levels WiFi connected and wireless. View your data anywhere, anytime, with this wireless and WiFi connected device with a 3 year battery life Easy to understand data with the Airthings app. The simple to use Airthings app and dashboard, enables you to track the radon, humidity and temperature levels in your home on your smart device Specifications: Dimensions: H:3.3 x W:9.0 x D:17.0 cm Colour: White Guarantee:1 Year Batteries Required: Yes Model Number: 2980