SONOFF AirGuard CO2 Matter Over Wi-Fi Air Quality Monitor | SAWF-08P
【Multi-Metric Environmental Monitoring】Simultaneously tracks and displays temperature, humidity, and CO2 levels, with support for switching temperature units to fit your preferences.
【High Precision & Rapid Sensing】Engineered with professional-grade accuracy using an NDIR sensor delivering ±(50 ppm + 5%) precision. Refreshes every 5 seconds to ensure timely updates on changing air conditions.
【Air Quality Improvement Advice】Offers improvement advice by combining real-time indoor readings with outdoor air conditions in your city, helping you take the right actions to maintain a healthier environment.
【One-Year Historical Data Storage】Securely stores up to one year of past air-quality data and supports export, giving you a reliable foundation for analyzing long-term home air patterns.
【Supports the Matter Protocol】Enabling seamless setup in Apple Home, Amazon Alexa, Google Home, and more. Easily build smart scenes with third-party devices for automated air-quality control.
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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
Multiple Application Scenario
More Surface Area, More Precise Data.
A larger gas contact surface makes the detected data more accurate.
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.
*AirGuard CO2 integration with the third-party Matter ecosystem requires a Matter hub.
Works Perfectly with Apple Ecosystem— Fully
Supports Siri, iPhone, iPad and Apple Watch.
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.
*AirGuard CO2 integration with the third-party Matter ecosystem requires a Matter hub.
Hands-Free Air Quality Check
Get an instant answer, no app needed.
*Need to use smart speakers with corresponding third-party voice platforms.
Get Tailored Air Quality Advice
It will analyze the CO₂ level in your room and the local Air Quality Index (AQI), and then provide you with more targeted and effective suggestions for improving air quality.
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.
.
Unlock Long-Term Air Quality Insights
Access and export up to 365 days of historical data for CO₂, temperature, and humidity. Visualize trends on intuitive charts to pinpoint the root causes of air quality changes.
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
What's in the Box?
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.
| Model | SAWF-08P |
| MCU | ESP32-D0WDR2-V3 |
| Interface Type | Type-C |
| Wi-Fi | IEEE 802.11 b/g/n 2.4GHz |
| Net Weight | 101g |
| Product Dimension | 70 × 103 × 26 mm |
| Casing Material | PC + ABS |
| Working Temperature | -10℃ ~ 50℃ |
| Working Humidity | 5–95% RH, non-condensing |
| Certification | CE / FCC / RoHS |
| FCC ID | 2APN5-SAWF08P |
Frequently asked questions
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.
Yes, the device's indicator lights and sounds can be turned off for a specified period.
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.
The CO₂ concentration for the SAWF-08P CO₂ detector updates every 5 seconds.
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