RuuviTag is a wireless Bluetooth sensor node that measures temperature, 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, or pair it with your Bluetooth capable Victron GX device such as the Cerbo GX to monitor and even control relays (Bluetooth USB adapter recommended and requires Venus OS v2.80).

(* Air Pressure and Movement is not currently supported by Victron GX Devices)


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

RuuviTag work in a range: -20°C to +70°C with the standard battery, or -40°C to +85°C with a special battery - not included)


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%


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: 300-1100hPa


RuuviTag knows exactly when it's moved. Known when the postman opened your mailbox outside and get notified if someone visited your hotel room while you were gone.

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.

Multi-Year Battery

User-replaceable CR2477 lithium battery. Lifetime 2-3 years.

History Logs

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

Long Range

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

No Pairing

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

Wide Temperature

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

Weather Resistant

Tolerates cold, hot and wet conditions.

Open Source

Firmware, electronics and mobile apps are all open source.


Ruuvi and Victron GX Device


Picture showing the sensor, and the reported data on Touch Display:


Here is how the data looks on the VRM Portal:


Controlling a relay on temperature

The relays on the GX device can now be controlled by temperature.
For example to switch a fan or heating pad. Here are two screenshots showing the configuration:

In the above example, the second relay will switch when the temperature in the engine bay rises above 45 degrees, starting the fan and it will switch the fan off once the temperature drops below 40 degrees C.



Model # RuuviTag 4-in-1
UPC/EAN 705632602119
Brand Ruuvi
Shipping Weight 0.0400kg
Shipping Width 0.150m
Shipping Height 0.050m
Shipping Length 0.100m
Shipping Cubic 0.000750000m3
Unit Of Measure ea

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