It is important to store insulin in the correct conditions, as the wrong conditions will reduce the effectiveness of the insulin or spoil it completely. Unused insulin should be stored in the refrigerator, once you have ensured that it is within the allowed temperature limits. Older refrigerators in particular can cool to freezing temperatures without you noticing, if they are set incorrectly.
When using insulin, you can store it at room temperature. When you’re on the move, it’s best to keep insulin close to your body in cold weather. In hot weather, it may make sense to keep a separate cooler for your insulin to protect it from getting too warm.
Insulin should also not be stored in direct sunlight, as the sun destroys the chemical structure of insulin, making it less effective. In addition, sunlight can significantly increase the temperature locally.
Measuring the storage temperature of insulin with a temperature sensor
To keep insulin in the best possible conditions, it is a good idea to monitor its storage temperature continuously. Whether it is a home fridge or a cooler used on the move, knowledge of its actual temperatures is important for the safe use of insulin. In addition, a temperature sensor can alert you if the temperature is about to reach unsuitable levels and you have time to change the conditions before it is too late.
The RuuviTag Bluetooth environmental sensor is a Finnish innovation that is perfect for insulin temperature monitoring. It’s small and durable, works wirelessly with your phone and the battery lasts around two years under normal conditions. RuuviTag works within the Ruuvi app, where you can set customised alarms, track history charts and view real-time measurement results, among other things.
RuuviTag measures air temperature, humidity, pressure and movement of the sensor itself.
You can set the Ruuvi app to send a push alert if your insulin is not at 2-8 °C (36–46 °F). This way you don’t need to constantly monitor the storage temperature of your insulin. You can also use the RuuviTag to check the temperature of unfamiliar fridges or cold spaces. Initially, set the RuuviTag to measure the temperature before exposing the insulin to potentially harmful conditions.
Note! Ruuvi’s products are not designed or manufactured for a medical use and should not be used for critical or life supporting applications. For medical products such as insulin, check the product packaging for proper instructions and storage conditions. We do our best to keep our hardware and software in the best possible condition, but we do not guarantee 100% availability and data integrity. The information on this page is in no way a substitute for information or advice from medical professionals and should not be followed if it conflicts with previously obtained information or advice. The use of RuuviTag is at your own risk and Ruuvi Innovations Ltd is not responsible for any damage caused by its equipment.
Buy Your Own RuuviTag
Store your products in the correct conditions
39,90€
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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RuuviTag Sensor (4in1)
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RuuviTag Sensor (4in1)
| Quantity | Unit Price(€) |
|---|---|
| 1 | 39,90 |
| 2 | 37,40 |
| 3-5 | 36,90 |
| 6-8 | 35,90 |
| 9-12 | 34,90 |
| 13-25 | 33,90 |
| 26-99 | 32,90 |
Are you looking for bigger quantities? Contact us for pricing.









After integrating four RuuviTags into my Victron Cerbo GX / VRM system in our Rapido motorhome, I can honestly say they have transformed the way I monitor the vehicle.
The setup now provides live temperature, humidity and pressure monitoring directly inside the VRM portal, allowing me to monitor critical areas including:
Battery Box
Orion DC-DC Charger Compartment
Engel Fridge
Main Rapido Fridge Area
What impressed me most was how seamlessly the RuuviTags integrated with the Cerbo GX via Bluetooth. Once connected, the data appears natively inside VRM and can be used for real alarms and automation.
I have now configured:
High temperature alarms
Low temperature alarms
VRM email notifications
Relay-triggered audible siren alarms
The system is now capable of warning me immediately if:
the lithium battery compartment gets dangerously cold
the battery box overheats
the Orion compartment becomes too hot
ventilation or airflow problems occur
The accuracy and stability of the readings have been excellent. The tags update reliably and provide a very clear picture of what is happening inside the motorhome.
One of the major advantages is that the system no longer relies on older digital-input alarm methods or complex workarounds. The RuuviTag + Cerbo GX combination feels like a modern, professional-grade monitoring solution.
The compact size, long battery life and wireless operation make installation extremely easy. No extra wiring was required for the sensors themselves.
For anyone building a Victron-based off-grid system, especially in a motorhome, caravan, marine or lithium battery installation, I would highly recommend RuuviTags.
They add a level of visibility and protection that is difficult to achieve any other way at this price point.
perfect to log my boat conditions when i’m away, and check pressure variations in real time when i sail