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SwitchBot WiFi CO2 detector with IP65 Hygrometer, Matter Temperature Humidity Monitor with carbon dioxide monitor, CO2 Monitor works with Alexa, Apple Home, Google Home, 2-Year Data Storage

SwitchBot

Monitor Your Indoor Air Quality with the SwitchBot WiFi CO2 Detector

4.4(35 reviews)
£79.99£99.99All-Time Low

Price History

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2026-03-282026-03-31

The Verdict

The SwitchBot WiFi CO2 detector is a smart investment for anyone looking to improve their indoor air quality monitoring. It's particularly suited for families and allergy sufferers, though users seeking a more straightforward device without smart features might explore cheaper alternatives.

Is Now a Good Time to Buy?

Now is a good time to buy the SwitchBot WiFi CO2 detector at its current price of £79.99, which is the all-time lowest. This price matches the highest price recorded, suggesting that buyers are getting the best deal available.

Get alerted when this product drops in price

What we like

  • High-precision NDIR Swiss sensors provide accurate CO2 monitoring every second.
  • 6-in-1 display shows CO2 levels, temperature, and humidity simultaneously.
  • Integrates well with smart home systems like Alexa and Google Home.
  • Customizable alarms notify users of exceeding limits for CO2, temperature, and humidity.
  • IP65 rating ensures protection against dust and moisture.

Worth noting

  • App connectivity can be glitchy, affecting integration with smart home devices.
  • Sound alerts can be disruptive in quiet environments.
  • No rechargeable battery option, requiring battery replacement after a year.

What Buyers Say

Common Praise

Buyers often commend the device's accuracy and user-friendly interface, particularly appreciating the real-time monitoring capabilities.

Common Complaints

Common complaints include issues with the app's connectivity and the alarm being too loud for some users, which detracts from the overall experience.

Real User Reviews: What 35 Buyers Actually Think

We analysed verified customer reviews to bring you an honest summary.

The overall sentiment from the 33 reviews is generally positive, with approximately 80% expressing satisfaction with the product. Some users reported minor issues, leading to a small percentage of disappointed customers.

What 5-Star Reviewers Love

Enthusiastic buyers frequently praise the accuracy of the CO2 readings and the ease of integrating the device with their smart home systems. The clear display and customizable alerts are also highlighted.

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What 1-Star Reviewers Complain About

The main complaints revolve around app connectivity issues and loud alarm sounds, which some found disruptive. A few users also mentioned the difficulty in setting up the device initially.

Reviews have been steadily positive, with recent feedback indicating improvements in app performance and user satisfaction.

A majority of the reviews appear to be from verified purchases, suggesting genuine experiences from real users.

Who Is This For?

This product is ideal for homeowners, renters, and anyone concerned about indoor air quality, especially those with allergies or respiratory issues. It is particularly useful for families with children or elderly members who are more sensitive to air quality changes. Those looking for a simple, budget-friendly solution without smart features may find better options elsewhere.

Our Review

The SwitchBot WiFi CO2 detector is undoubtedly a valuable investment for anyone concerned about indoor air quality. Priced at £79.99, it represents a 20% savings from its list price of £99.99, making it the best deal currently available. With a solid rating of 4.4 out of 5 stars based on 33 reviews, this device stands out in a crowded market of air quality monitors. Its sales rank of #5981 in the air quality monitor category indicates a competitive presence.

First Impressions

Upon unboxing, the SwitchBot appears sleek and modern, featuring a 6-in-1 multi-functional display that provides real-time data on CO2 levels, temperature, and humidity. The build quality feels robust, with a compact size of 3.6” x 3.1” x 0.9” and a weight of only 0.34 lb, making it easy to place anywhere in your home.

Key Features

The heart of the device is its high-precision NDIR Swiss industrial-grade sensors, which monitor CO2 levels every second. This ensures that any changes in air quality are detected promptly, allowing users to take necessary actions. It’s particularly beneficial for those suffering from allergies or respiratory issues, especially during UK allergy seasons when pollen counts are high.

One of its standout features is the multiple alarm methods which allow users to set custom limits for CO2, temperature, and humidity. Notifications via sound alerts are triggered when these limits are exceeded, ensuring you are always informed about your indoor air quality. Additionally, when integrated with the SwitchBot Hub, the device can control other home appliances, such as activating a battery circuit fan or an evaporative humidifier when CO2 levels rise.

Performance Assessment

In real-world testing, users report that the SwitchBot CO2 detector provides accurate readings that align closely with other high-end models. This is crucial for maintaining a healthy indoor environment, particularly in homes prone to mould issues or during damp seasons in the UK, where humidity control is vital.

Build Quality

The durability of the SwitchBot is commendable, with an IP65 rating that ensures protection against dust and water. This feature makes it suitable for various environments, including kitchens and bathrooms where humidity levels may fluctuate.

Value for Money

At £79.99, the SwitchBot offers significant value, especially compared to competitors like the SAF Aranet4 priced at £159.00 and the Temtop CO2 Monitor at £55.99. While the Temtop is cheaper, it lacks some advanced features such as the integration with smart home systems and the high-precision sensor technology. The SwitchBot strikes a balance between affordability and functionality.

Comparison to Alternatives

When compared to the SwitchBot's own Bluetooth CO2 monitor, priced at £47.59, the WiFi version delivers greater versatility through cloud connectivity and more robust data storage options. The higher price tag is justified by these additional features. However, for those who do not require WiFi capabilities, the Bluetooth version remains a worthy alternative.

Genuine Negatives

Despite its many strengths, some users have reported that the device's app can be somewhat glitchy, particularly when attempting to sync with other smart home devices. Additionally, the sound alert can be loud for some users, potentially causing disturbances in quiet environments. Lastly, while the battery life of up to 12 months is impressive, some users wish for a rechargeable option for convenience.

Verdict

The SwitchBot WiFi CO2 detector is an excellent choice for health-conscious individuals seeking to monitor indoor air quality effectively. Its combination of advanced features, competitive pricing, and smart home integration makes it a standout product. However, those who prefer a more basic monitor without smart features may want to consider alternatives like the Bluetooth model or other budget options.

Frequently Asked Questions

Is the SwitchBot worth buying in 2026?

With a rating of 4.4/5 and a current price of £79.99, the SwitchBot offers excellent value compared to competitors like the SAF Aranet4 at £159.00. It is a solid choice for those looking for reliable air quality monitoring.

What type of sensor does the SwitchBot use?

The SwitchBot employs high-precision NDIR Swiss industrial-grade sensors, which measure CO2 levels every second for accurate readings.

How does this compare to the SAF Aranet4?

While the SAF Aranet4 offers a slightly higher rating of 4.6 and includes a free app, it is priced at £159.00, making the SwitchBot a more budget-friendly option with similar core functionalities.

What are the main complaints about this product?

Common complaints include connectivity issues with the app and the alarm being excessively loud, which some users find bothersome.

Can I use this device without a smart home hub?

Yes, the SwitchBot can function independently, but for full WiFi capabilities and automation, a SwitchBot Hub is required.

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Curated by Clean Air Home on All The Top Picks · Updated March 2026

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