Aqara TVOC Air Quality Monitor vs SwitchBot Meter Pro (CO2 Monitor)

SwitchBot Meter Pro (CO2 Monitor) has the stronger overall profile: it earns a higher customer rating, offers more connectivity options and integrates with more platforms, including SmartThings and Matter through a SwitchBot Hub. Aqara TVOC Air Quality Monitor is the more affordable of the two, which is its main advantage.

What they measure. Both track temperature and humidity, but the SwitchBot unit adds an NDIR CO2 sensor that tells you when a room needs ventilation, while the Aqara unit adds a TVOC sensor for airborne chemicals, a reading many owners describe as erratic and hard to trust for automations. Neither device measures particulates or radon.

The Aqara TVOC Air Quality Monitor always does: it is a Zigbee device, so an Aqara hub is required for setup and for any integration. The SwitchBot Meter Pro (CO2 Monitor) works on its own over Bluetooth with its display and app, and only needs a SwitchBot Hub for remote access, voice assistants and Matter.

SwitchBot Meter Pro (CO2 Monitor) covers more ground: Alexa, Google Home, Apple HomeKit, SmartThings, Home Assistant, IFTTT and Matter (with a SwitchBot Hub). Aqara TVOC Air Quality Monitor works with Alexa, Google Home, HomeKit, Home Assistant and IFTTT through an Aqara hub, but has no SmartThings or Matter support.

Choose SwitchBot Meter Pro (CO2 Monitor) if you want dependable CO2 readings for a home office or bedroom, a large screen you can read across the room, and the widest platform support. It can also run on USB-C power or batteries.

Choose Aqara TVOC Air Quality Monitor if you already run an Aqara Zigbee hub, prefer its compact e-ink display, and mainly want temperature and humidity readings with HomeKit automations at a lower price. Treat its TVOC reading as a rough indicator rather than a precise measurement, based on owner feedback.