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SwitchBot W0402502 Smart Thermometer Hygrometer, 3-Pack1 / 7
Product guide

SwitchBot W0402502 Smart Thermometer Hygrometer, 3-Pack

SwitchBot W0402502 is a three-pack of indoor thermometer-hygrometers with an LCD display and Bluetooth app access. It tracks temperature and humidity, with dew point, VPD and absolute humidity readings, plus data storage and CSV export. Remote alerts and smart-home integrations require a SwitchBot Hub.

At a glance

  • Displays temperature and humidity, plus dew point, VPD and absolute humidity through the app.
  • The listing claims Bluetooth access and CSV export for reviewing stored readings.
  • The LCD is described as having large, easy-to-read figures, though customer feedback on visibility and screen quality is mixed.
  • SwitchBot Hub is required for remote alerts, Wi-Fi connection and the stated smart-home integrations.
Price
£19.99Save 26%

Reference price: £26.99

Price checked: 12 Nov 2026

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Often bought together

Pros and cons

Pros

  • Three meters support monitoring separate indoor spaces.
  • App data storage and CSV export provide a way to review readings over time.
  • Can stand on a tabletop and is described as magnetic or wall-mountable.

Cons

  • Bluetooth monitoring depends on proximity, and customer feedback reports mixed range experiences.
  • Customer feedback includes reports of unreadable or faulty displays, making screen consistency a concern.

Technical specifications

10 specifications
Identity
BrandSwitchBot
ModelW0402502
Pack quantity3
ColourPearl white
Display and measurement
Screen technology listedLCD
Temperature accuracy0.2 degrees_celsius
Upper temperature rating40 Degrees Celsius
Connectivity and data
Bluetooth range claim394ft connecting distance (no obstacles)
On-board data storage claimup to 36 days On-board Data Storage
In-app data storage claimup to 2 years In-App Data Storage

What to know before buying

Listing details to confirm

The listing gives conflicting on-board storage claims of up to 36 days and 68 days. It also claims a Bluetooth distance of 394ft in one section and up to 120m under unobstructed conditions in another. The product details say no batteries, while the description says the package contains two batteries per meter, so verify the selected listing's battery and storage details.

What’s in the box

Included
  • 3 meters

Who is it for?

A good fit for

  • People wanting temperature and humidity monitoring in several indoor rooms.
  • Users who want stored readings and CSV export for tracking environmental changes.
  • SwitchBot users who can add a Hub for remote alerts and smart-home scenes.

Less suited to

  • Buyers needing remote alerts or voice-assistant integration without a separate SwitchBot Hub.
  • Anyone who needs a guaranteed readable or fault-free screen, given the reported mixed display feedback.
SwitchBot W0402502 Smart Thermometer Hygrometer, 3-Pack · photo 2
Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 3,645 ratings
  • 5 stars60%60%
  • 4 stars16%16%
  • 3 stars10%10%
  • 2 stars4%4%
  • 1 star10%10%

Customer feedback highlights perceived accuracy, ease of use and functionality, while display visibility and Bluetooth range receive mixed reports. Some customers also report faulty screens. For multi-room monitoring, the three-pack and app tracking may be useful, but the screen concerns matter if readings need to be checked directly, and Bluetooth access may vary with distance.

Positive themes

  • Customers report that the meter is accurate and easy to set up and use.
  • Customers appreciate its functionality and value for money.

Negative themes

  • Some customers report faulty screens.

Mixed feedback

  • Display visibility varies, with reports of both readable and unreadable screens.
  • Bluetooth connectivity and range receive mixed feedback, including reports of poor range.

Frequently asked questions

Can I receive alerts when I am away from home?

The listing says a SwitchBot Hub is required for alerts from anywhere. Nearby Bluetooth alerts are described separately.

Can I use it for smart-home automation?

The listing says a SwitchBot Hub is needed for Wi-Fi, voice-assistant integrations and scenes involving other SwitchBot devices.

How long does it store readings?

The listing claims up to two years in-app storage, but its on-board storage claims conflict: one section says up to 36 days and another says 68 days.

Are batteries included?

The product details state “No batteries”, while the description says the package contains two batteries. Confirm what applies to the selected listing.

SwitchBot W0402502 Smart Thermometer Hygrometer, 3-Pack · photo 3
Additional product photo 3

Alternative options

Product details in Markdown