SONOFF AirGuard CO2 Review - Your New Matter Sensor for Home Assistant?

Is your home air actually safe to breathe? This smart CO₂ monitor might surprise you… Looking for a reliable CO₂ monitor for your smart home? In this video, I take a deep dive into the SONOFF AirGuard CO2 monitor, a Matter enabled air quality sensor that tracks CO₂, temperature, and humidity in real time. Using an NDIR sensor, fast 5 second updates, and full Matter support, this could be one of the easiest ways to bring air quality monitoring into Home Assistant, Apple Home, or Alexa. But is it actually accurate? And how well does it integrate into a real smart home setup? 👉 In this video, I cover: Real-world CO₂ accuracy vs other sensors Matter setup in Home Assistant eWeLink App Alerts, historical data & smart insights Whether it’s actually worth buying The AirGuard also stores up to 1 year of historical air quality data and even gives actionable advice based on indoor + outdoor conditions. If you're building a smarter, healthier home, this is one video you’ll want to see. 🛒 BUY THE SONOFF AIRGUARD CO2 MONITOR https://geni.us/8OBPv 🛒 BUY THE SONOFF AIRGUARD PM2.5 MONITOR https://geni.us/sRz7jxy ⭐ USE CODE BYTEOFGEEK10 FOR 10% DISCOUNT ℹ️ You should know that as an Amazon Associate I earn from qualifying purchases. By buying through any of the links below I will earn commission at no extra cost to you, however in doing so you are helping to support the channel. 📺 Watch next: Explore my other Home Assistant tutorials and smart home setup videos here:    • Home Assistant - Smart Home and Automation   👀 Check out what Smart Home Devices I currently use https://www.byteofgeek.com/smart-home... ✨ About Byte of Geek Byte of Geek is your go-to channel for Home Assistant, smart home technology, and DIY automation. Subscribe for tutorials, setup guides, and reviews that help you build a smarter, more connected home. 👍 Remember to SUBSCRIBE to the channel so you don't miss future content 🙌 SUPPORT THE CHANNEL Become a channel member and get access to exclusive perks:    / @byteofgeek   Buy Me a Coffee: https://www.buymeacoffee.com/byteofgeek 🌐 READ MORE My Website: https://www.byteofgeek.com 🔍 YOU CAN FIND ME ON Discord:   / discord   Bluesky: https://bsky.app/profile/byteofgeek.b... Instagram:   / byteofgeek   Facebook:   / byteofgeek   Twitter:   / byteofgeek   #SONOFF #AirGuard #HomeAssistant