SONOFF AirGuard SAWF-08P Wi-Fi Matter CO2 Air Quality Monitor
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SONOFF AirGuard SAWF-08P Wi-Fi CO2 Air Quality Monitor
The SONOFF AirGuard SAWF-08P is an intelligent air quality monitor that measures CO2 concentration, temperature, and humidity. The device uses an NDIR sensor, refreshes data every 5 seconds, and supports the Matter standard via Wi-Fi 2,4 GHz.
Key features:
- Measurement of three parameters: CO2 concentration, temperature, and air humidity.
- NDIR sensor: CO2 measurement accuracy of ±(50 ppm + 5%).
- Fast refresh rate: measurement results updated every 5 seconds.
- Matter support: integration with compatible smart home systems.
- Wi-Fi connectivity: communication in the 2,4 GHz band.
- Measurement history: data storage for up to 12 months and export capability.
- Triple alert system: app notifications, audible alarm, and light signaling.
- Do Not Disturb mode: option to mute alerts during specific hours.
- USB-C power supply: operates with an external 5 V / 1 A power adapter.
Measurement of CO2, temperature, and humidity
The SONOFF AirGuard SAWF-08P monitors the most important parameters affecting indoor comfort. Excessively high carbon dioxide levels can cause drowsiness, fatigue, and reduced concentration, so real-time measurement helps determine the right time to ventilate the room.
The built-in NDIR sensor ensures accurate CO2 measurement, and data refreshing every 5 seconds allows for quick observation of changes in the environment.

Measurement history and air quality analysis
The device allows for saving historical data for a period of up to 12 months. The collected results allow for analyzing changes in CO2 levels, temperature, and humidity at different times of the day and assessing the effectiveness of room ventilation.
Data can be exported for further analysis. The system can also combine internal measurement results with information about outdoor air quality to facilitate the selection of the appropriate ventilation method.
Integration with Matter systems
Support for the Matter standard allows adding the monitor to compatible smart home systems. The device can work with platforms such as Apple Home, Google Home, and Amazon Alexa, depending on the features supported by the chosen ecosystem.
After integration, it is possible to use the device's readings in automation scenes, for example, to trigger ventilation, an air purifier, or send notifications when a set CO2 level is exceeded.


Notifications and CO2 level alert signaling
The monitor can inform about abnormal conditions via app notifications, an audible alarm, and light signaling. Warning thresholds can be adjusted to your needs, and the Do Not Disturb mode allows you to limit signals during selected hours.
Important information about installation and power supply
- Power supply: the device requires an external 5 V / 1 A power adapter with a USB-A port.
- Power adapter included: no.
- Power cable: USB cable is included in the set.
- Measurement vents: rear ventilation holes must have free access to air.
- Installation: do not press the device flat against the wall or cover the ventilation holes.
- Measurement accuracy: restricted airflow around the housing may affect the sensor response time.

Technical specification
- Manufacturer: SONOFF
- Series: AirGuard
- Model: SAWF-08P
- Measured parameters: CO2, temperature, and humidity
- CO2 measurement technology: NDIR
- CO2 measurement accuracy: ±(50 ppm + 5%)
- Refresh rate: every 5 seconds
- Microcontroller: ESP32-D0WDR2-V3
- Connectivity: Wi-Fi IEEE 802.11 b/g/n 2,4 GHz
- Smart Home standard: Matter
- Power interface: USB-C
- Required power supply: 5 V / 1 A
- Operating temperature: from -10°C to 50°C
- Operating humidity: 5–95% RH non-condensing
- Housing material: PC + ABS
- Dimensions: 70 × 103 × 26 mm
- Net weight: 101 g
- Certificates: CE, FCC ID 2APN5-SAWF08P, RoHS

Package contents
- SONOFF AirGuard SAWF-08P air quality monitor.
- USB power cable.
- User manual.
A USB-A 5 V / 1 A power adapter is required for the device to operate. The power adapter is not included.



