Sonoff AirGuard CO₂ Monitor (WiFi Smart Air Quality Sensor)
Take full control of your indoor environment with the Sonoff AirGuard CO₂ Monitor, a precision tool designed for growers who demand optimal air quality, stable conditions, and consistent results.
Accurate CO₂ monitoring is one of the most overlooked factors in indoor growing. With the AirGuard, you can track and optimise your environment in real time, ensuring your plants always have the conditions they need to thrive.
Why It Matters for Indoor Growing
CO₂ levels directly impact plant growth, photosynthesis, and overall yield. Poor air exchange or elevated CO₂ can lead to slow growth and reduced performance. This device gives you the data you need to dial in your setup properly.
Key Features
High-Precision CO₂ Monitoring
Equipped with a professional-grade NDIR sensor, delivering accurate readings with fast 5-second refresh rates for real-time control.
3-in-1 Environmental Tracking
Monitor CO₂ levels, temperature, and humidity simultaneously, all critical factors for a stable indoor setup.
Smart Alerts and Automation
Receive instant alerts via app notifications, sound, or visual indicators when levels move out of range so you can react quickly.
WiFi Connectivity (Matter Compatible)
Integrates seamlessly with smart home systems like Google Home or Alexa, allowing automation such as triggering fans or ventilation systems.
Data Tracking and Analysis
Stores up to 365 days of historical data, helping you fine-tune your environment over time for better consistency and results.
Clear LCD Display
Large, easy-to-read screen showing real-time environmental conditions at a glance.
Ideal For
Indoor growing tents and sealed rooms
Hydroponic and soil setups
Growers running CO₂ supplementation
Anyone serious about environmental control
Why Growers Use CO₂ Monitors
Dialling in your environment is data-driven. Monitoring CO₂ alongside temperature and humidity allows you to improve growth rates, optimise ventilation timing, prevent stagnant air conditions, and maximise efficiency of your setup.
What’s Included
Sonoff AirGuard CO₂ Monitor
USB-C power cable
User manual