SONOFF AirGuard Series Review: PM2.5, CO2 & Temperature Humidity Monitors with Matter Support

SONOFF AirGuard Series
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SONOFF AirGuard PM2.5
Air Quality Monitor

ModelSAWF-07P

ConnectivityWi-Fi 2.4GHz + Matter

Accuracy±10μg/m³ (0-100μg/m³)

Update RateEvery 2 seconds

Temp Range-10℃~50℃

Humidity Range5-95%RH

Dimensions70x103x26mm

Weight127.6g

The SONOFF AirGuard PM2.5 is the first PM2.5 & PM10 monitor with native Matter support, making it incredibly easy to integrate with Apple Home, Google Home, and Home Assistant. It features a high-definition LCD screen that displays real-time PM2.5, PM10, temperature, and humidity data.

Key Features

High Accuracy: ±10μg/m³ (0-100μg/m³) and ±10% (100-500μg/m³)
Fast Response: Measurements every 2 seconds
Triple-Alert System: Sound, colored light indicator, and app notifications
Matter Compatible: Seamless integration with major smart home platforms
Year-Long Data Tracking: 12 months of historical data with export capability

SONOFF AirGuard CO2
CO2 Monitor

ModelSAWF-08P

ConnectivityWi-Fi 2.4GHz + Matter

Accuracy±(50ppm + 5%)

Update RateEvery 5 seconds

Temp Range-10℃~50℃

Humidity Range5-95%RH

Dimensions70x103x26mm

Weight101g

The SONOFF AirGuard CO2 is the first CO₂ monitor in the market with native Matter-Ecosystem support. It provides accurate CO₂ concentration monitoring along with temperature and humidity tracking, perfect for maintaining optimal indoor air quality.

Key Features

High Accuracy: ±(50ppm + 5%) accuracy
Quick Updates: Readings every 5 seconds
3-in-1 Display: CO₂, temperature, and humidity on one screen
Triple-Alert System: Customizable sound, light, and app alerts with Do Not Disturb mode
Voice Control: Check CO₂ levels via Alexa or Google Assistant

SONOFF AirGuard TH
Temperature & Humidity Sensor

ModelSNZB-02DR2

ConnectivityZigbee 3.0 + Bluetooth

Display3.6'' LCD Screen

Temp Tolerance±0.2℃/±0.36℉

Humidity Tolerance±2%RH

Power2x AAA Battery

Dimensions95x70x18.2mm

Weight99.3g (with batteries)

The SONOFF AirGuard TH is a versatile Zigbee 3.0 temperature and humidity sensor with a large 3.6" LCD display. It features both Zigbee and Bluetooth connectivity, offering flexibility in how you monitor your environment.

Key Features

Large 3.6" Display: Shows local and remote readings plus 24-hour extremes
Dual Connectivity: Zigbee 3.0 or Bluetooth options
Advanced Analytics: Dew point and VPD tracking with historical trends
Dual-Location Comparison: Compare two locations on one screen
6-Month History: Detailed historical data with charts and graphs

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automation:
  - alias: "High PM2.5 Alert"
    trigger:
      - platform: numeric_state
        entity_id: sensor.airguard_pm25_pm25
        above: 35
    action:
      - service: notify.mobile_app
        data:
          message: "Air quality alert! PM2.5 level is {{ states('sensor.airguard_pm25_pm25') }} μg/m³"
          title: "Poor Air Quality Detected"

CO2 Ventilation Control
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automation:
  - alias: "Auto Ventilation on High CO2"
    trigger:
      - platform: numeric_state
        entity_id: sensor.airguard_co2_carbon_dioxide
        above: 1000
    action:
      - service: switch.turn_on
        entity_id: switch.ventilation_fan

Temperature-Based Climate Control
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automation:
  - alias: "Temperature Control"
    trigger:
      - platform: numeric_state
        entity_id: sensor.airguard_th_temperature
        above: 26
    action:
      - service: climate.set_temperature
        entity_id: climate.bedroom_ac
        data:
          temperature: 24

SONOFF AirGuard Series Review: PM2.5, CO2 & Temperature Humidity Monitors with Matter Support

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