









SONOFF AirGuard CO2 Matter Over Wi-Fi Air Quality Monitor | SAWF-08P
Tax excluded. Shipping calculated at checkout
$10 Off Over $79 (Code: SOBF10), $30 Off Over $179(Code: SOBF30)
$50 Off Over $279 (Code: SOBF50), offer valid until Dec 15!
Technical details, troubleshooting or setup tips? Access the AirGuard CO2 knowledge center for all the info you need.

SONOFF Air Quality Monitor—AirGuard CO₂
Elevated CO₂ levels can cause drowsiness and poor concentration. Reducing them helps you feel more alert and focused.
Multiple Application Scenario
High Accuracy & Fast Response
With built-in NDIR Sensor, the CO₂ monitor guarantees an accuracy of ±(50ppm + 5%). The continuous power supply allows for readings to update every 5 seconds.
Real-time CO₂, Temp & Humidity Tracking
Perfectly Compatible with the Matter Ecosystem
With a wider working coverage! AirGuard CO2 supports joining the Matter ecosystem, you can integrate it into your usual apps, such as Apple Home, Google Home and Alexa.
Works Perfectly with Apple Ecosystem— Fully Supports Siri, iPhone, iPad and Apple Watch.
Hands-Free Air Quality Check
Get an instant answer, no app needed.
3 Configurable Alert Methods
Receive instant warnings through 3 methods: app notifications, sound and light alarms. Customize your preferences and set a "Do Not Disturb" Mode to avoid being disturbed when you need peace.
Feature Overview
Airguard Series Comparison
Quick Use
Two pairing methods are available for you to choose from. The first is to add a device via the eWeLink APP. The second is to add a device via a Matter-compatible app.


Specifications
Specs & User Manual
AirGuard CO2 is a Matter over Wi-Fi CO2 air-quality monitor designed to integrate seamlessly with Apple Home, Amazon Alexa, Google Home, and other major platforms. It delivers professional-grade accuracy with an NDIR sensor refreshing every 5 seconds, while supporting sound alarms, indicator-light alerts, and push-notification warnings. The device monitors temperature, humidity, and CO₂ levels simultaneously with flexible temperature unit switching. It also provides air-improvement suggestions by combining your city’s outdoor conditions with real-time indoor data. Plus, it stores a full year of historical records with export support, offering valuable insights for long-term air-quality analysis.
User Manual (PDF)SAWF-08P
ESP32-D0WDR2-V3
Type-C
IEEE 802.11 b/g/n 2.4GHz
101g
70x103X26mm
PC+ABS
-10℃~50℃
5-95%RH, non-condensing
CE/FCC/RoHS
2APN5-SAWF08P
FAQ
1.Why does the device buzzer sound again after I press the buzzer switch once and some time has passed?
When the sound alarm is triggered, to prevent frequent disturbances, the device enters a 30-minute silent mode after manual buzzer deactivation. During this period, the buzzer won't sound even if CO₂ levels remain high. To fully disable alerts, press the button again and verify the buzzer icon is off on the screen.
2. Does the device have a Do Not Disturb mode?
Yes, the device's indicator lights and sounds can be turned off for a specified period.
3. Can the device be wall-mounted?
No, the back of the device has air vents for gas detection. Mounting it directly against a wall may affect the accuracy of the device to some extent.
4. What is the data update speed?
The CO₂ concentration for the SAWF-08P CO₂ detector updates every 5 seconds.






















































