The SONOFF AirGuard CO₂ monitors carbon dioxide concentration, temperature, and humidity in the room. Updated readings help you understand when it is time to ventilate a room, maintaining a clear view of indoor conditions.
Fast and accurate measurement
NDIR sensor for CO₂ measurement
Stated accuracy of ±(50 ppm + 5%)
Readings updated every 5 seconds
Simultaneous measurement of CO₂, temperature, and humidity
Configurable sound, light, and in-app notification alerts
Smart home integration
The Matter over 2.4 GHz Wi-Fi connection allows you to integrate the monitor into compatible platforms, including Apple Home, Amazon Alexa, and Google Home. It can also be configured via the eWeLink app.
Track environmental trends
View charts and access up to 365 days of CO₂, temperature, and humidity history, with the option to export the data. This allows you to identify patterns and better understand the impact of ventilation and room occupancy.
Confirmed specifications
Model: SAWF-08P
Wi‑Fi: IEEE 802.11 b/g/n, 2.4 GHz
Power interface: USB Type‑C
Stated output current: 1 A
Dimensions: 70 × 103 × 26 mm
Net weight: 101 g
Operating temperature: -10 °C to 50 °C
Operating humidity: 5% to 95% RH, non-condensing
Note: this device monitors the environment and does not replace certified safety or emergency detection systems.
