SwitchBot Meter Pro CO2 review

What it measures

The Meter Pro CO2 combines three readings on one screen: CO2 concentration, temperature and humidity. SwitchBot’s listing states the sensor is NDIR (non-dispersive infrared), made in Switzerland to what it calls “industrial grade,” refreshing every second across a stated range of 400–9999 ppm with a claimed accuracy of ±50 ppm. That’s a specific, checkable figure — something the simpler TFA display in this family doesn’t publish for its CO2 reading.

Standalone display vs. the full feature set

Out of the box, the device works on its own: it shows CO2, temperature and humidity on a large screen without needing anything else. Where SwitchBot’s ecosystem comes in is the extra layer — app notifications, a 6-in-1 display mode that adds time, date, comfort level and a weather forecast, and automation triggers (for example, turning on a compatible fan when CO2 climbs) — and SwitchBot’s own listing states that a separate SwitchBot Hub 2 is required for those features. Buying the monitor alone gets the core three-sensor reading; the smart-home layer is an added purchase.

Power and physical size

SwitchBot lists a built-in battery rated for up to 12 months between charges, with a low-battery warning on-screen. The unit measures roughly 91 × 79 × 23 mm and weighs about 154 g, small enough to sit on a desk or mount on a wall using the built-in holes. The listing also states two years of on-device data storage, though without the Hub there’s no described way to pull that history into an app or export it.

What it doesn’t cover

This is a three-sensor device — CO2, temperature, humidity. It doesn’t include a particulate (PM2.5) or VOC sensor, so it won’t flag dust, smoke or off-gassing the way the multi-pollutant units in this family do. Anyone wanting particulate readings alongside CO2 would need to look at Temtop’s M2000C or Airthings’ View Plus instead. SwitchBot also doesn’t publish a stated operating temperature range or a calibration procedure for this specific model, so anyone comparing sensors line-by-line against Temtop’s field-calibratable CO2 sensor won’t find an equivalent figure here.

Price across markets

The same ASIN, B0DBVDWB6G, was confirmed on Germany, France, Italy and Spain, with new-condition prices clustering close together — roughly 46–51 € depending on the market. SwitchBot also lists it in the US and UK, though the listing and price presentation differ enough between those two and the four EU markets that this review sticks to the EU pricing for its price label.

Bottom line

The Meter Pro CO2 is the clearest case in this family of a manufacturer naming both the sensor technology and a numeric accuracy claim. The trade-off is that several of its most-advertised features — alerts, forecasts, automation — sit behind a separate Hub purchase, so the sticker price on the monitor itself isn’t necessarily the full cost of the experience SwitchBot markets.