Each plant species has its own precise limits, but most seeds grow best at the temperatures listed above. If it’s too cold and the sprouts will grow very slowly or not at all. If it’s too warm, sprout growth can stagnate and, in the worst case scenario, excessive temperatures can allow harmful microbes to grow on the sprouts. For food safety, the temperature of the sprouts must be kept low enough.
It makes sense to grow sprouts, because within a few days the nutritional value of the seeds becomes much more favourable to humans. Sprouts are rich in nutrients that are important for humans, so it is advisable to grow and add them to your diet. Growing sprouts can be done in a small space and in the dark, so anyone can grow their own food at home even if they don’t have a greenhouse. In addition, growing sprouts is an inexpensive and energy-efficient way to add fresh and nutrient-rich food to your diet.
Measure the temperature at which sprouts develop with the RuuviTag and you can make sure that the temperature is high enough, especially in winter. In the summer, the sprout growth environment can become too warm and the sprouts can spoil and cause food poisoning. With a RuuviTag, you can continuously measure the temperature at which sprouts are growing and receive alerts on your phone if the conditions are not optimal.
How do you grow sprouts at home?
- Keep the seeds in a jar filled with water for 8 to 12 hours.
- Strain the water out of the jar so that the seeds remain moist in the jar. This is best done by attaching filter paper or a similarly fine enough filter to the mouth of the jar and leaving the jar upside down for a sufficiently long time.
- Allow the sprouts to grow out of direct sunlight at a temperature of 20 °C to 24 °C or 68 °F to 75°F. Rinse the sprouts a few times a day. Make sure that the sprouts dry out sufficiently after rinsing to allow them to take in oxygen from the air.
- The germination time of the sprouts varies depending on the type of seed, but they are usually ready to eat after 3 to 5 days. You can store them in the refrigerator for a few days Remember to rinse the sprouts every day.
Buy RuuviTag And Grow Sprouts Safely
Monitor temperature and keep the temperatures inside safe limits
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.
In stock
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.










⭐⭐⭐⭐⭐ Excellent sensors for RV monitoring and Victron VRM integration
I am extremely satisfied with my Ruuvi sensors.
I use several of them in different locations inside my motorhome: in the refrigerator, battery compartment, living area, kitchen area and other positions. Installation was very simple and the sensors have been working flawlessly from day one.
What impressed me most is the excellent integration with the Victron ecosystem. Through Victron VRM I can monitor all sensor data remotely 24/7, which is incredibly useful when living and travelling off-grid.
The accuracy is outstanding. The pressure readings of different sensors are almost identical, showing only minimal differences, which gives me great confidence in the quality of the measurements. Temperature and humidity readings have also proven to be very reliable.
I have even used the sensors to evaluate the performance of a portable compressor cooler. Thanks to the precise temperature logging, I was able to see that the cooler dropped from 20°C to 0°C in about 30 minutes and reached -20°C in less than an hour. Without Ruuvi sensors, such testing would have been much more difficult.
Battery life has been excellent, setup is easy, and the overall user experience is outstanding.
For anyone using Victron equipment, RVs, boats, off-grid systems, refrigerators, freezers or environmental monitoring, I can highly recommend Ruuvi sensors.
Hard to say anything bad. It does exactly what it promises.
Excellent!
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.
Works well and bluetooth connection works from quite far away even with a few walls in between.
perfect to log my boat conditions when i’m away, and check pressure variations in real time when i sail
Excellent, now you need to produce a wireless sensor integrated with victron to measure water tank quantity.
Ich habe seit 2023 schon 3 Sensoren im Wohnmobil verbaut (2 ProSensoren in der schwarzen Hülle für Kühlschrank und im Gefrierfach). Ohne Probleme kann ich so auch mal gegensteuern, wenn die Temperatur „ausreißt“). Die entsprechenden Temperaturgrenzen können auf der App eingestellt werden und ich erhalte eine Warnung ⚠️. Hat mir schon mal mein Gefrorenes gerettet.
Jetzt im Winter hatte ich die Kühlschrank Sensoren für Bad und Garage genutzt. Namen in der App geändert.
Nun habe ich mir noch zwei Sensoren für das WoMo bestellt. Einfach super empfehlenswert 👍
Anzumerken ist, dass die kälteresistenten Batterien nicht per Post nach Deutschen verschickt werden. Komisch, da die Sensoren mit Batterie verschickt werden. Die normalen (im Handel erhältlichen) funktionieren bei aber bei minus 25 Grad 🤗