SwitchBot Meter Pro CO2 Monitor W4900010

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Product guide

SwitchBot Meter Pro CO2 Monitor W4900010

SwitchBot Meter Pro CO2 Monitor W4900010 combines a CO2 reading with temperature and humidity on a screen that also displays time, date and comfort level. Its listed alarm and smart-home functions have hub requirements, so check which features you can use without adding a SwitchBot Hub.

At a glance

The listing claims CO2 is measured every second, with an accuracy of ±50 ppm and a range of 400-9999 ppm.
The screen presents CO2, temperature and humidity alongside time, date and comfort level. Weather forecasts are stated to require SwitchBot Hub 2.
Configurable CO2, temperature and humidity limits can trigger sound and screen alerts. App notifications require a SwitchBot Hub.
The listing describes automations through the SwitchBot ecosystem, including activating a compatible fan or humidifier when CO2 levels exceed a limit.

Price

£61.99Save 38%

Reference price: ~~£99.99~~

Price checked: 14 Nov 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

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Pros and cons

Pros

Combines CO2, temperature and humidity readings on a single display.
Sound and visual alerts are described alongside optional app notifications, providing local warning methods without relying solely on phone alerts.
The stated measurement range, accuracy and one-second interval give buyers concrete claimed CO2 sensing details to compare.

Cons

Several connected features depend on a separate SwitchBot Hub, including app notifications and third-party voice control. Weather forecasts specifically require SwitchBot Hub 2.

Technical specifications

14 specifications

Identity
Brand	SwitchBot
Model	W4900010

Monitoring
CO2 sensing method	NDIR Swiss industrial-grade sensors
CO2 measurement range	400-9999 ppm
CO2 accuracy claim	±50 ppm
Measurement interval	every 1 second
Displayed information	CO2 levels, temperature, humidity, time, date, comfort level, and weather forecasts (SwitchBot Hub 2 required)

Power and battery
Power configuration	Battery Powered
Battery life claim	up to 12 months

Alerts and connectivity
Alarm methods	sound alarms, visual screen alerts, and app notifications (SwitchBot Hub required)
Smart-home ecosystem	third-party voice control, simplifying air quality management

Dimensions and installation
Dimensions listed	92D x 24W x 79H centimetres
Weight listed	234 Grams
Placement features	wall-mount holes and an adjustable bracket

What to know before buying

Listing details to confirm

The listing title claims Wi-Fi, Matter, IP65, Alexa, Apple Home, Google Home and two-year data storage, but the supporting product details do not confirm these capabilities. They also conflict with feature text describing third-party voice control as hub-enabled, and the battery claim is up to 12 months rather than two years of data storage. Confirm the selected model's connectivity, protection rating, storage terms and hub requirements before buying. The listed dimensions are unusually large for a compact monitor, so verify them with the seller if size matters.

What’s in the box

Included

User manual

Who is it for?

A good fit for

Buyers who want an at-a-glance indoor CO2, temperature and humidity display.
People who value configurable local sound and visual alerts, with the option of SwitchBot Hub-enabled notifications and automation.

Less suited to

Buyers who need confirmed Wi-Fi, Matter, IP65 protection or direct voice-assistant support without a hub.
Anyone relying on the listing title's two-year data-storage claim without confirming what is stored and which hub or service is required.

SwitchBot Meter Pro CO2 Monitor W4900010 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 95 ratings

5 stars69%69%
4 stars21%21%
3 stars8%8%
2 stars0%0%
1 star2%2%

Aggregate ratings are generally favourable, with most ratings in the top two star categories, but a small share are at the lowest rating and some are mid-range. Without written feedback, the reasons for these ratings are unknown. They do not establish whether the CO2 readings, hub-dependent features or disputed listing claims meet a particular buyer's needs.

Frequently asked questions

Does the monitor work with Alexa, Apple Home and Google Home?

The title claims support for these platforms, while the feature details say a SwitchBot Hub enables third-party voice control. Check the selected model's compatibility and hub requirements before purchase.

Does it include Wi-Fi, Matter and IP65 protection?

Those features appear in the title, but the supplied product details do not substantiate them. Confirm them for the exact W4900010 listing before relying on them.

What does it measure and how often?

The listing describes CO2, temperature and humidity monitoring. It claims a CO2 range of 400-9999 ppm, ±50 ppm accuracy and a measurement interval of every 1 second.

Are app alerts and weather forecasts available without a hub?

The feature details state that app notifications require a SwitchBot Hub and weather forecasts require SwitchBot Hub 2. Sound and visual screen alerts are also listed.