Ambient Weather PM2.5 Wireless Indoor Particulate Monitor

Measure fine particulate & air pollution levels in your home The sensor is a high quality Sensirion Particle Sensor Send data to the Ambient Weather Network, create alerts, and connect to Google Home or Amazon Alexa Sensor Dimensions: 2.8 x 4.0 x 2.7 in AC Adapter included; 2 x AA battery backup (not included)