Why WiFi Matters for CO2 Monitoring
A standalone CO2 monitor with a display is useful, but a WiFi-connected monitor unlocks a new level of capability: remote monitoring, historical data in the cloud, multi-room dashboards, and smart home automations. For homes with multiple rooms and especially for offices and schools, connectivity is essential.
What to Look For
- Real-time cloud dashboard — view all your monitors from anywhere via a web browser or app
- Historical data — graphs showing CO2 trends over days, weeks, and months help you spot patterns. See how to read your data.
- Alert notifications — push alerts to your phone when CO2 exceeds a threshold
- Smart home compatibility — HomeKit, Alexa, Google Home, or Home Assistant integration
- NDIR sensor — ensure it uses a real CO2 sensor, not an eCO2 approximation. Learn the difference in our sensor technology guide.
Top WiFi-Connected CO2 Monitors
1. Airthings View Plus
The most comprehensive option: CO2, PM2.5, VOCs, humidity, temperature, and radon. Cloud dashboard with excellent data visualisation. Supports Alexa, Google Home, IFTTT, and Home Assistant. See our full home monitor guide.
2. Qingping Air Monitor Lite
Compact and affordable with native Apple HomeKit support. Measures CO2, PM2.5, temperature, and humidity. Great for Apple households.
3. INKBIRD IAM-T1
Budget-friendly WiFi monitor with a bright colour display. CO2, temperature, and humidity. Works with Alexa and has a decent mobile app.
4. Awair Element
Measures CO2, VOCs, PM2.5, temperature, and humidity. Strong app experience with personalised recommendations. Integrates with Alexa, Google Home, and Home Assistant.
5. uHoo Aura
Enterprise-grade with multiple sensors including CO2, PM2.5, VOCs, and formaldehyde. Cloud-based management dashboard ideal for offices and schools.
Setup Tips
- Place monitors correctly — WiFi does not change placement rules. Follow our placement guide.
- Ensure strong WiFi signal — monitors in rooms with weak WiFi may drop offline.
- Configure alerts immediately — set thresholds at 800 and 1,000 ppm to start.
- Review data weekly — use the CO2 calculator alongside your logged data to validate ventilation effectiveness.