# SwitchBot W3400012 Wireless Hygrometer Thermometer, 2 Pack

Pack: The SwitchBot W3400012 wireless hygrometer thermometer is a two-unit temperature and humidity monitoring set. Its listing claims IP65 dust and water resistance for indoor or outdoor use, while customer feedback reports mixed Bluetooth connectivity experiences.

- [Original product page](https://bargainpostbox.co.uk/product/switchbot-w3400012-wireless-hygrometer-thermometer-2-pack)
- [View offer](https://bargainpostbox.co.uk/visit/switchbot-w3400012-wireless-hygrometer-thermometer-2-pack)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: SwitchBot
- Model: W3400012
- Price: 18.02 GBP
- Previous price: 29.99 GBP
- Discount: 40%
- Price checked: 2026-11-12T18:42:46.837Z
- Rating: 4.4 / 5
- Reviews: 10495

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing describes IP65 dustproof and waterproof protection for indoor and outdoor placement, including rainy-day use.
- Two meters are listed, with example uses including kitchens, bathrooms, greenhouses and refrigerators.
- The title claims 100m Bluetooth range, two-year battery life and free data storage. These are listing claims, not independently verified performance.

## Pros

- A two-meter set can monitor conditions in two locations.
- The claimed IP65 protection broadens the stated use beyond indoor rooms.
- Customer feedback reports easy setup, portability and temperature readings that users found accurate.

## Specifications

### Identity
- Brand: SwitchBot
- Model: W3400012
### Dimensions and installation
- Dimensions listed: 28W x 60H millimetres
### Construction and power
- Colour: White
- Battery type: Alkaline
- Upper temperature rating: 50 Degrees Celsius
### Measurement
- Temperature accuracy: 0.2
### Pack and listed contents
- Number of items: 2
- Included components: 2\*Outdoor Meter, User Manual, 4\*AAA \(built-in\), 2\*lanyard

## Before you buy

- The title claims 100m Bluetooth range, two-year battery life and free data storage, but the supplied technical details do not confirm their conditions or operating requirements. Bluetooth feedback is mixed, so consider whether the connection suits the placement and monitoring distance you need. The listing gives temperature accuracy as “0.2” without a unit in the supplied details.

## In the box

- 2 outdoor meters (Included)
- User manual (Included)
- 4 AAA batteries, built-in (Included)
- 2 lanyards (Included)

## A good fit for

- Buyers wanting temperature and humidity monitoring in two locations, including stated indoor and outdoor settings.
- People looking for a portable meter for spaces such as a greenhouse, refrigerator or bathroom.

## Less suited to

- Buyers who require confirmed Bluetooth performance at a particular distance or need a clearly specified temperature-accuracy unit.

## Customer feedback

Customer feedback describes the meter as easy to use and portable, with users reporting accurate temperature readings and the ability to track changes over time. That could suit monitoring separate locations, as the listing describes a two-meter set. Bluetooth experiences are mixed, which matters if you need consistent remote readings.
- Positive themes: Customers report ease of use and portability.
- Positive themes: Customers report accurate temperature readings and tracking changes over time.
- Mixed feedback: Bluetooth connectivity receives mixed feedback, with reports of both trouble-free use and connection issues.

## Frequently asked questions

### Can these meters be used outdoors?
The listing describes them as IP65 dustproof and waterproof and suitable for indoor and outdoor use, including rainy days. This is a listing claim rather than independently verified performance.
### What comes in the package?
The listed contents are two outdoor meters, a user manual, four built-in AAA batteries and two lanyards.
### Is the stated Bluetooth range guaranteed?
The title claims a 100m range, but the supplied details do not specify the conditions for that figure. Customer feedback reports both trouble-free use and connectivity issues.

## Alternative options

- [SwitchBot Indoor Outdoor Hygrometer Thermometer Wireless 3Packs, Thermometer Room Temperature, Dewpoint/VPD/Absolute Humidity Sensor, 2-Year Battery Life, Free Data Storage](https://bargainpostbox.co.uk/visit/switchbot-w3400012-wireless-hygrometer-thermometer-2-pack)
- [SwitchBot Weather Stations with Outdoor Sensor Wireless for Home, Temperature Humidity Monitor with Alert, Date and Weather Forecast\(Hub Reuiqred\), Free Data Storage and Export](https://bargainpostbox.co.uk/visit/switchbot-w3400012-wireless-hygrometer-thermometer-2-pack)
- [SwitchBot Smart Room Thermometer Hygrometer Sensor Indoor 3Packs, Bluetooth Digital Temperature Monitor with Free Data Storage, Dewpoint/VPD/Absolute Humidity Meter, LCD Screen Wireless Thermometer](https://bargainpostbox.co.uk/visit/switchbot-w0402502-smart-thermometer-hygrometer-3-pack)
- [SwitchBot Smart Room Thermometer Hygrometer Sensor Plus, Wireless Digital Indoor Temperature Gauge Humidity Monitor with Dewpoint/VPD/Absolute Humidity Meter, for Home, Greenhouse, Basement and Pets](https://bargainpostbox.co.uk/visit/switchbot-meter-plus-thermometer-hygrometer-sbt-w2301500)
- [SwitchBot CO2 detector with Built-in Hygrometer, Temperature Humidity Monitor with carbon dioxide monitor, Bluetooth CO2 Monitor, 2-Year Data Storage, SwitchBot Hub Required for WiFi Function](https://bargainpostbox.co.uk/visit/switchbot-meter-pro-co2-outdoor-meter-monitor)
- [ThermoPro TempPro WiFi Hygrometer Thermometer, Wireless Humidity Meter Temperature and Humidity Monitor, Bluetooth Temperature Sensor with App Alerts and Data Storage Export](https://bargainpostbox.co.uk/visit/switchbot-w3400012-wireless-hygrometer-thermometer-2-pack)
- [X-Sense Wi-Fi Thermometer Hygrometer, Compatible with Alexa, STH55 \| Wireless Temperature Monitor Humidity Sensor with Notification Alert, Free Data Storage Export, for Greenhouse, Home, Office](https://bargainpostbox.co.uk/visit/switchbot-w3400012-wireless-hygrometer-thermometer-2-pack)
- [SwitchBot WiFi Thermometer Hygrometer 3Pack with Hub Mini Matter, IP65 Indoor Outdoor Thermometer Wireless, Humidity/Temperature/Dewpoint/VPD/Absolute Humidity, Works with AppleHome, Alexa, GoogleHome](https://bargainpostbox.co.uk/visit/switchbot-w3400012-wireless-hygrometer-thermometer-2-pack)
- [SwitchBot Thermometer, Temperature and Humidity Meter with Date and Time, Outdoor Sensor Required for Weather Stations Function, Free Data Storage Export](https://bargainpostbox.co.uk/visit/switchbot-meter-pro-temperature-humidity-monitor)
- [SwitchBot Indoor Thermometer Hygrometer 2 Pack, Indoor Temperature Humidity Sensor with Smart Alert & 68-Day Data Storage, 3In Bluetooth Room Thermometer](https://bargainpostbox.co.uk/visit/switchbot-w3400012-wireless-hygrometer-thermometer-2-pack)
- [Brifit Wireless Thermometer Hygrometer, Bluetooth 5.0 Room Temperature Humidity Sensor with APP Alert, Temp Humidity Monitor with Trend Recording and Data Export, for House, Greenhouse, Cellar\(2 Pack\)](https://bargainpostbox.co.uk/visit/switchbot-w3400012-wireless-hygrometer-thermometer-2-pack)
- [SwitchBot Blind Tilt Motorized Blinds - Smart Electric Blinds with Bluetooth Remote Control, Solar Powered, Light Sensing Control, Add Hub to Work with Alexa & Google Home](https://bargainpostbox.co.uk/visit/switchbot-w3400012-wireless-hygrometer-thermometer-2-pack)

## Add-ons

- [SwitchBot WiFi Weather Stations with Outdoor Sensor Wireless UK, Temperature Humidity Monitor with Date and Weather Forecast, Matter Hub Makes Station Work with Alexa, Apple Homekit, Google Home](https://bargainpostbox.co.uk/visit/switchbot-meter-pro-outdoor-meter-hub-mini-weather-station)

## Images

![SwitchBot W3400012 Wireless Hygrometer Thermometer, 2 Pack — 1](https://bargainpostbox.co.uk/i/kscCRpXQ4LH5QoItWy2wKgev5PmhRw-nqPdkQVTLpqR3E86XzZCYvm37bk9exedcpMEa4J9vmF9_I4bi03PD3pmuOdAbLRhd5oEheFSqNyL84cGgvc5o.jpg)

![SwitchBot W3400012 Wireless Hygrometer Thermometer, 2 Pack — 2](https://bargainpostbox.co.uk/i/lOlITNHZww85ElwNXOoN1W1hvdywXzSF-_5csJ4XfY7EYLWzCbK7E7ijQQmjg20mJlOAG8O7CsvMdNAk2J7X_HzUgwshOvd1TzYTkLVeTcr-t8JP2fIk.jpg)

![SwitchBot W3400012 Wireless Hygrometer Thermometer, 2 Pack — 3](https://bargainpostbox.co.uk/i/9nKbvJhNHOf5qA4eLlhsjBiT308qFThxyg7pXd2_6cuk6hVoEr8J2kMK0e-M6BvZMVtWVZuclws1J_8jdTD8QlUqt6kbNMeiiMmtL7un0ebBFzlrdhBu.jpg)

![SwitchBot W3400012 Wireless Hygrometer Thermometer, 2 Pack — 4](https://bargainpostbox.co.uk/i/9Haw3VdY-EI4sRfExzbqf_KH8REkh5hKrxw2tpN6OkCtUbiUI_HodjviMzH5z7ddHPjz1b_YYhviRf46QVH7eBaL6v-KXbr9gdOuQmKmXwXcVzsUNmv8.jpg)

![SwitchBot W3400012 Wireless Hygrometer Thermometer, 2 Pack — 5](https://bargainpostbox.co.uk/i/rc06qLtfBkVxNz7E_aWY928y0m_YMNZ4hehAh_u1jqYMBCLbTDWVc3tPJ0l6HrgdJxyFiIDNeABz13pwX9x3ehUK2ltDA4yUhLfOMuRN6GDs28j0r89N.jpg)

![SwitchBot W3400012 Wireless Hygrometer Thermometer, 2 Pack — 6](https://bargainpostbox.co.uk/i/Cud1uTGq01z6oauBB8TaOPesuGjtxIcoVi48ogCvPAaz6yX8EADFDRRrxBhVUPkOCbno_PD4FngcMUcvDU7omZ78EdDzNMJSRtvf9Nlujkwu7WiSW7LS.jpg)

![SwitchBot W3400012 Wireless Hygrometer Thermometer, 2 Pack — 7](https://bargainpostbox.co.uk/i/pmI_7k0FgvfMMpKVt1ITgNDlVn5BBLRBj4ly71XeTgCCnQ-DBvZsN-PSxAR7Nsnqg7Dpj3Ge4sIBbuKKRj_8N9KyYLb3dPrJXcLY0CoCcYxfpjeSOYMD.jpg)