SwitchBot Meter Pro CO2

Quick verdict

If you care about indoor air quality, this sensor covers temperature, humidity, and CO2 in one device with a clear e-ink display. It works with Home Assistant over Bluetooth or Matter via a Hub. The CO2 readings are useful for automating ventilation. Trigger a fan when levels climb. Not the cheapest option if you only need temp and humidity, but the CO2 monitoring justifies the step up.

Standout: Combined temperature, humidity, and CO2 monitor with e-ink display and Matter support.

Last checked: 2026-03-22

Compatibility snapshot

Why it stands out

• three sensors in one: temperature, humidity, and CO2 monitoring
• built-in e-ink display shows readings without needing a phone or dashboard
• Matter via Hub means data can flow into Home Assistant locally

Reasons to hesitate

• CO2 sensor adds cost over basic temp/humidity sensors
• Bluetooth range limits placement options without a Hub
• Hub required for Matter and remote data access

Best for

• indoor air quality monitoring with Home Assistant automations
• anyone who wants a standalone display plus smart home integration

Avoid if

• you only need temperature and humidity, since simpler sensors cost less
• you want a fully local Thread or Zigbee sensor without any hub

Privacy and local-control notes

Environmental data stays local over Bluetooth. Hub bridges to WiFi for Matter and cloud features. No personal data collected.

Home Assistant support: supported · integration path: SwitchBot / Matter.

Buying reality check

Price notes: Mid-range pricing is fair for a three-in-one sensor with a display. Comparable to dedicated CO2 monitors that lack smart home integration.

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