Airthings View Plus comprehensive, radon & air quality monitor with 7 sensors including radon, PM 2.5, and CO2 - with remote access and cable-free We spend about 90% of our time indoors - View Plus tells you what’s in your air. Comprehensive air monitor with 7 sensors including radon, PM2.5, and CO2. Great for kitchens and living rooms where the family gathers. Forget about power cables and outlets, it runs on batteries (and they're included!). WiFi connectivity lets you access your air quality information from anywhere using the Airthings app. View Plus can also work as the hub of your multi-room monitoring system, enabling anytime access to the data from your Airthings Wave monitors. Works with IFTTT for smart home automation. SEVEN, ALWAYS-ON SENSORS: WiFi connected indoor air quality monitor measuring radon gas, particulate matter (PM2.5), carbon dioxide (CO2), VOCs (airborne chemicals), humidity, temperature, and air pressure. EASY-TO-USE & CABLE-FREE: Quick and easy setup. Understated unit that is battery-powered for cable-free placement. Display up to four values on the eInk screen. Check complete readings in the app. FREE & FRIENDLY APP: Use the Airthings app to check current readings and analyze trends over time. Get timely notifications and tips to improve your air. Check your local pollen forecast with data from Google. SMART & HEALTHY HOME: Ask your Amazon Alexa to audibly share current readings and use IFTTT or Homey to trigger smart air purifiers, heaters, plugs, etc. MULTIROOM HUB: Plug it in with the USB cable and View Plus becomes a Hub that enables remote access to your home's Wave monitor data. It's easy to build a multiroom air quality monitoring system for your home. FIVE YEAR WARRANTY: Register for the optional and free extended warranty to increase your standard product warranty to five years. When we say long-term monitoring is essential, we stand by it!