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Wireless Temperature, Humidity, Air Pressure and Motion Sensor
RuuviTag Bluetooth Sensor

Wireless Temperature, Humidity, Air Pressure and Motion Sensor

RuuviTag Bluetooth Sensor


Tax 24% | 0%

Ruuvi is based in Finland. If you’re an EU consumer, VAT is included. If you’re a non-EU customer, you don't pay VAT. If you're an EU business, insert your VAT ID at checkout.

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Technical Specifications
Product package
Sensor will be delivered in 1-pack or 3-pack packages depending on the quantity. Two sensors = 2 x 1-pack and three sensors = 1 x 3-pack. If you wish to have a specific packaging, please leave a note on the checkout page.
Recommended operating temperature
-20 ºC to +70 ºC (with a special temperature range battery longer battery lifetime can be achieved)
Maximum operating temperature
-40 ºC to +85 ºC (electronics and enclosure)
1000 mAh CR2477 Li/MnO2 battery (included)
52,00 mm
12,55 mm
30 g
Temperature units (on Ruuvi Station)
Celsius, Fahrenheit, Kelvin
Humidity units (on Ruuvi Station)
Relative air humidity, absolute humidity, dew point
Pressure units (on Ruuvi Station)
Pa, hPa, mmHg, inHg
Temperature sensor accuracy
Typical absolute accuracy ±0,2 °C @ 5...60 °C, output resolution 0,01 °C
Humidity sensor accuracy
Typical absolute accuracy ±2 %, 20...80 %, 25 °C
Pressure sensor accuracy
Typical absolute accuracy ±1 hPa
Main chip
Nordic Semiconductor nRF52832
Ambient sensor
Sensirion SHTC3, temperature and air humidity
Pressure sensor
Infineon DPS310
STMicroelectronics LIS2DH12
Radio protocols
Bluetooth (default), Wirepas Mesh, Lumenradio Mesh, Bluerange Mesh, ANT, Other 2.4 GHz proprietary protocols
Embedded NFC™-A tag antenna
Enclosure material
IP67, not suitable for continuous immersion. When immersed, Goretex membrane is recommended to be sealed with waterproof tape. Standard enclosure is not suitable for high humidity installations with condensation risks.
⭐ Reviews ⭐
I have over 20 RuuviTags

These @ruuvicom products are simply the best temperature and condition meters I have ever used. I have over 20 of them, both personally and at work. I give them a 5/5 rating. A special shout-out to the excellent customer service and for being manufactured in Europe.
⭐⭐⭐⭐⭐  5/5

- Markus H.
If only everything worked so well and easily.

I’ve been using 4 of these senors on our sailboat for temperature in fridge, freezer, engine room, generator sound enclosure, and the pro-model as a water alarm in our bilge for almost a year now. They also easily paired with our Victron systems and the setup was unbelievably easy. I can not recommend them enough. A 10 out of 5.
⭐⭐⭐⭐⭐  5/5

- Sheila Boyce
Avoided water damage

I had a RuuviTag in my house’s boiler room. One day I noticed suddenly increased air humidity levels and went to see what’s going on. Found a leaking water pipe!
⭐⭐⭐⭐⭐  5/5

- Pekka
Monitoring temperature and humidity at home

Multiple Sensors
in One Tag

Smart choice for any home monitoring.

Small temperature sensor

Measuring Made Easy

RuuviTag is a wireless Bluetooth sensor node that measures temperature, air humidity, air pressure and movement. You can read live measurements and history data directly on your smartphone using Ruuvi’s mobile app for Android and iOS.

Use your imagination and measure almost anything at your home, at work, in your hobbies.

Easy to use

1 minute quick start

Multiple sensors

Multiple sensors in one device

Multi-year battery lifetime

FREE mobile application

A cabin in a snowy landscape


RuuviTag works in both cold and hot environments. This makes it possible to measure temperature in demanding locations.

Range: -40°C to +85°C for electronics, standard battery recommended temperature range -20°C to +70°C.

Humidity measuring music instruments


With RuuviTag, you can respond to air humidity changes in real time. Protect your valuable items such as musical instruments, plants or constructions.

Range: 0-95%

Air pressure and storm on mountains


RuuviTag's air pressure sensor can be used to forecast sudden weather changes, such as upcoming storms. It can also be used to analyse altitude changes from the sea level to high mountains.

Range: 500-1100hPa

Hotel room door with a key in the key hole


RuuviTag knows when it's moved. Get notified when the door is opened or things are moved. Note that sensor is very sensitive and it's not possible to adjust sensitivity. Feature works best with Ruuvi Gateway.

Easy to Use

All you need is a smartphone and our free mobile app to go with the sensors. There are no ongoing monthly costs using the app.


RuuviTag Quick Start Cover

Watch the video to see how easy RuuviTag is to set up.


Ruuvi Station mobile app is available on Android and iOS.

Temperature notifications


Receive notifications when environmental conditions change or movement is detected.

Note: Email alerts are available for Ruuvi Gateway users.

A dog sitting on a porch.


Rename the sensors and use your favourite background photos.

Note: Sensor sharing is available for Ruuvi Gateway users.

Ruuvi Station
Temperature history graphs


Analyse up to 10 days of history on temperature, air humidity and air pressure. Data is stored every 5 minutes.

Note: Longer history is available for Ruuvi Gateway users.

Trusted by the Largest Companies

Ruuvi offers remote temperature monitoring solutions designed to fit perfectly for both consumer and business uses.

Ruuvi products are made in Europe and have been adopted by thousands of companies worldwide. Our quality has earned the trust of the largest companies in the industry:

Only the
best parts

RuuviTag looks sleek and clean, but it can still operate in challenging environments. It's designed with passion by the very best engineers.


    User-replaceable CR2477 lithium battery. Lifetime 12-24 months.


    Up to 10 days of downloadable environmental history data. Logged every 5 minutes.


    Bluetooth beacon technology offers better range compared to traditional Bluetooth devices.


    Because no connection is needed, your phone can simultaneously listen to numerous sensors.


    Wide -40°C to +85°C temperature range with the special Ruuvi battery. (Default -20°C to +70°C.)


    Tolerates cold, hot and wet conditions.


    Firmware, electronics and mobile apps are all open source.


Buy now!

Get your own measurement buddy!

Why would I need Ruuvi products?

The use cases for Ruuvi sensors are unlimited and the only limit is your imagination. Read more about use cases and user experiences on our blog and our forum.

The Ruuvi products are designed in Finland and produced in France with the highest quality standards to ensure the best possible products at the end!
We do not believe in bots (at least on our webpage)! We are very happy to answer any of your questions regarding a product or to support you with any issue.

Is my mobile device compatible with Ruuvi products?

Ruuvi’s sensors work with Ruuvi Station mobile app. The app can be downloaded both from the Play Store (Android) and the App Store (iOS). It is also available for tablets.

Is RuuviTag water-resistant?

RuuviTag is IP67 certified (water-resistant, tested in 1 meter depth). If you are looking for a fully waterproof sensor, please check out RuuviTag Pro (2in1), which is IP68 or IP69K certified (waterproof, tested in 50 meters depth). See the certification of each sensor directly on the product pages.

Please keep in mind that Bluetooth signals are strongly attenuated in the water and range will be significantly reduced. Ruuvi sensors can then be used in narrow water if you want to maintain connection (for example pool or jacuzzi). If you want to measure deeper, you can attach the RuuviTag Pro to a string and take it back to the surface when you want to download the data history.

What are the operating conditions of the Ruuvi sensors?


Electronics of the Ruuvi sensors can support temperatures between -40°C (-40°F) and +85°C (+185°F). However, the market standard CR2477 batteries’ operation range is usually between -20°C (-4°F)  and +70°C (+158°F). Do not exceed these temperatures without shopping our custom made wide-range battery, which is designed to operate with the same limits as the electronics of the sensors.

Dust & Water

All the sensors are resistant to dust and moisture. Some of the sensors are IP67 certified (water-resistant) and some are IP68 or IP69K certified (waterproof). See the specific certifications for each sensor on the product page. Please keep in mind that water lowers drastically the range of the sensors.

How to monitor the Ruuvi sensors remotely?

The Ruuvi sensors can be monitored with just a mobile device and the Ruuvi Station app within the Bluetooth range. If you want to monitor conditions from further, you’ll need our Ruuvi Gateway product.

The Gateway is connected to the internet and listens to sensors with a higher sensitivity than a regular mobile device. The test results talk by themselves: up to 2000 meters between the Gateway and the sensors, compared to 200 meters between a mobile device and the sensors (test realized in optimal conditions without any obstacle).

Then, the Gateway shares the data to our cloud service. The sensor measurements are then retrievable, either from the mobile app or our web interface from anywhere in the world as long as you have an internet connection.

Do I need to charge my Ruuvi sensors?

No, the power of the Ruuvi sensors is supplied by CR2477 coin batteries, included in the box. One battery lasts usually between 12-24 months in continuous use. The battery is easily replaceable by the user making our products very sustainable and lowering their maintenance costs to a few euros.

Check how to change the RuuviTag battery!

Can I use the Ruuvi sensors to monitor my sauna?

Yes you can!

The sensor’s temperature increases slightly slower than the sauna’s temperature and the readings depend a lot on where it is placed inside the sauna. But that’s not a problem! Just check at the first use what is the sensor reading when the sauna is just perfect for you. Then, set the alert to this specific value to get notified when the sauna is ready and to get the perfect temperature every single time!

Please note, that if the sensor is reaching temperatures above 70°C (85°C with a custom battery) you should consider setting the sensor somewhere lower in the sauna to avoid any thermal damage.

What is the range?

Using only Ruuvi sensors

The sensors send data packages via Bluetooth to your mobile device. Thanks to optimized sensor antenna design, in perfect conditions without any obstacle, the Bluetooth range is up to 200 meters, which is way more than that regular Bluetooth speaker.

Please keep in mind that any obstacle, especially metal enclosures, concrete walls, or proximity of water will lower the range.

Using Ruuvi sensors + Ruuvi Gateway

The sensors send the same data packages as above with the same emission power. However, the reception antenna is way better on the Ruuvi Gateway than on a regular mobile device. The highest range ever recorded, in optimal conditions, between the Gateway and the sensors is a vertiginous 2000 meters!

The Ruuvi Gateway shares then data to the cloud service and the sensor readings are then retrievable from anywhere in the world as long as you have an internet connection.

Are Ruuvi products compatible with home assistant?

Yes, more information is available here:

How fast is the shipping?

We work with the best courier partners and do our best to proceed to the shipment within 24 hours from the order! All the products are sent from our warehouse in Finland and delivery time depends obviously on your location. We will provide you with a tracking number automatically to your email so that you can follow where your Ruuvi package is going.

Can I see the data history of my Ruuvi sensors?

Yes you can!

Up to 10 days with the Ruuvi sensors alone

The Ruuvi sensors have built-in storage enabling them to store 10 days of measurement data. You can import the data to the Ruuvi Station mobile app at any point by pressing “sync” button in the app. This means that even when leaving from the Bluetooth range, you will be able to see a detailed 10 days history when coming back and synchronizing.

Up to 2 years with the Ruuvi Gateway and our cloud service

If this 10 days of data is too short, or that you want to be able to monitor your sensors remotely, you should consider the Ruuvi Gateway. It enables you to analyze up to 2 years of data history on the convenient and intuitive desktop version of Ruuvi Station. Also, no need to synchronize, the Ruuvi Gateway is continuously sharing data to the cloud and it is retrievable from anywhere around the world as long as you have an internet connection.


For orders over
100 €.


Designed and assembled
in Finland.


Our return rate is
less than 0,1 %.


Fast response time to
all messages.