Ruuvi Innovations Oy
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  • Will sensors work in both cold and hot?

    RuuviTag's electronics are specified to work from -40°C to +85°C (-40°F to +185°F).

    The default battery that is included the shipment, tolerates temperatures from -20°C to +70°C (-4°F to +158°F).

    Extended temperature batteries are available on order. For more info, please email

  • What is the range?

    RuuviTag broadcasts Bluetooth Low Energy messages one time every single second, 24/7. This greatly enhances range between RuuviTag and receiver (mobile phone).

    Without obstacles in open air, we have measured extreme ranges (>500 meters or >1600 feet). However, mobile phones' Bluetooth antennas differ a lot and some phone models have better reception than others. Any obstacles also greatly decrease the range.

    Due to these facts, we don't promise any exact range for the sensors. 

  • How long the battery will last?

    RuuviTag comes with a CR2477 battery that theoretically lasts about 4 years.

    However, in practice, battery lifetime will be somewhat shorter so to be safe, we tend to say it has a 2+ year battery.

    Battery life depends on temperature. In cold temperatures, lifetime will be shorted due to battery and in really warm temperatures electronics consume a bit more power than on room temperatures. This can shorten the projected battery life.

  • How does RuuviTag actually work?

    RuuviTag is an extreme low-power Bluetooth Low Energy sensor node that continuously measures temperature, relative air humidity, air pressure and acceleration.

    Environmental variable measurements are taken every second, 24/7. After data is measured, RuuviTag prepares a Bluetooth message and broadcasts it out for nearby receiver to collect. The receiver can be a mobile phone or a gateway.

    Even the sensor measures and sends data every second, battery is projected to theorethically last up to 4 years. This means one battery has enough juice to measure and send up to 100 million times before running out of energy.


  • How does Ruuvi Station app actually work?

    As soon as your phone has detected a close-by RuuviTag, you can see it in the app. In the settings, you can change the name of the sensor, ea. “Home basement” and set a picture.

    You can also set alerts on, ea. about specific temperature levels (on iOS, update firmware). The app then sends you notifications, if you allow them.

    Read more on the manuals.

  • RuuviTag is open-source. What does it mean?

    Ruuvi products are different than many others because our software and hardware are both 100% open-source.

    For general consumers this does not necessarily make that much difference but for companies, home automation enthusiasts and electronics hobbyists simply love this tiny but still extremely significant detail.

    For example, if you would like to modify RuuviTag's firmware to do your own thing, you can.

    Read more about how Ruuvi can boost your business and how RuuviTags can be used for prototyping purposes:

  • How fast is your shipping?

    From Monday to Friday, we usually ship orders from our Finnish warehouse in the same or next day.

    Ruuvi has happy customers in over 100 countries. We ship world-wide.

    We always keep stock and all the orders are delivered as soon as possible. Customer satisfaction is our first priority.

    For different shipping options available, see our Shop.

  • Can I monitor my home?

    Ruuvi is the perfect match for the job. You can set as many RuuviTags to different rooms as you like, and you can monitor the temperature easily with your smartphone.

    You can also set alerts, so that you know if it’s getting too hot or cold in some of the rooms.

    Remember, that you can also monitor the temperature in a dog's house, baby carriage or greenhouse!

    You can find ideas about different uses on our Blog.

  • I am a developer and want to get the most out of Ruuvi’s open source code

    Start easily with Ruuvi Lab and Ruuvi Forum. See also Ruuvi Documentation. At this point, we invite you warmly to contribute and join the Ruuvi Family.

    The community offers inspiration, help and shares ideas.

    You might end up wanting to order your own Dev Kit, too. It’s designed for hardcore developers who would like to take their RuuviTags to the limit by flashing and debugging the devices via SWD (Serial-Wire-Debug) bus or use RuuviTag’s extra IO connections on bottom of the circuit board.

  • Does history logging work on the both Android and iOS?

    Due to Apple iOS' background usage restrictions, iPhone and iPad devices are not capable of scanning nearby Bluetooth broadcast messages when the app is not on foreground. This has delayed adding Ruuvi Station history logging features on the iOS.

    With our beta firmware 3.29, data is logged in RuuviTag and Ruuvi Station can read the data over Bluetooth connection. Read more info about the firmware and on how to upgrade.

  • How to connect RuuviTag with my phone?

    Before getting into the app, we want to make sure you have prepared well.

    Once you get a RuuviTag to your hands, the first thing you need to do is to remove the plastic resist between the battery and the clip. Make sure that your RuuviTag is within a reasonable distance from your mobile device, and not blocked by physical barriers.

    Once you have made the preparations, you can download the app to your phone. Install Ruuvi Station mobile application and follow the instructions.

    The app automatically recognises RuuviTags closeby - you don’t need to carry out Bluetooth pairing.

  • Is RuuviTag waterproof?

    RuuviTag resists water (IP67) but do not leave the breathing sticker on top of the lid to direct contact with water for long periods of time. Note also that if you do, air humidity and air pressure sensors won't work well because water blocks the air flow.

    If you want RuuviTag to measure long-lastingly under water, we recommend you to put it inside of a plastic bag or such.

    Note also that radio waves travel under water barely not at all. Under water, Blutooth range will be really bad.