Temperature monitoring · Ships to you
A small, waterproof Bluetooth sensor that reports temperature, humidity and air pressure from your fridge, battery bay or living area — to your phone, or to your Victron Cerbo GX and VRM. Our printed step-by-step setup guide comes in the box.
RuuviTag Wireless Sensor — pick your pack
Single tag
| 1 RuuviTag + guide | $64.99 |
| Shipping | $6.00 |
| Total | $70.99 |
2-PackSave $14.99
| 2 RuuviTags + guide | $114.99 |
| Shipping | $6.00 |
| Total | $120.99 |
Pick your pack at checkout. Secure checkout by Square — you'll enter your shipping address there. US addresses only.
What's in the box
- 1× or 2×RuuviTag wireless sensor — temperature, humidity, air pressure and motion — battery installed, activated by pulling the strip
- 1×Tucson RV Solar Install & Sync Guide — 3 printed pages: activation, placement, Cerbo GX and VRM setup, the Ruuvi Station app path, troubleshooting
Where RV owners put them
Fridge or freezer
Know it's holding temperature while you're away or on the road.
Battery bay
Watch lithium batteries in summer heat and winter cold.
Living area
Check on pets or the inside temperature from anywhere.
Cargo bay
Catch freezing temperatures near water lines and tanks.
Good to know before you order
Specs
- Waterproof and dustproof (IP67)
- Works from −4 °F to 158 °F
- Replaceable CR2477 coin-cell battery
- Shows °F or °C — your choice
Range
- Plan on about 30 ft to the Cerbo GX or your phone
- Metal walls, bays and fridges shorten it — the guide shows how to test a spot first
You'll need
- The free Ruuvi Station app, or a Victron Cerbo GX
Setup in three steps
Activate
Pull the battery strip. With two tags, set up one at a time.
Place
Pick the spot and check the signal reaches.
Connect
Turn on Ruuvi in the Cerbo GX, name it, pick °F or °C. No Cerbo? Use the app.
Watch us set it up
RuuviTag + Cerbo GXTurning on Ruuvi support and adding a tag to a Cerbo GX
Rather have us do the Cerbo setup?
If Tucson RV Solar installed your system and you're a SolarWatch Pro member, we'll add the tags to your Cerbo GX remotely and put a temperature alert on your monitoring. If a Cerbo relay is already wired to a fan or heater, we can program it to switch on temperature.
Give us 48 hours' notice. Nothing changes until you approve it.
See SolarWatch plansQuick answers
How much is shipping?
A flat $6.00 per order, single or 2-pack. Totals: $70.99 for one tag, $120.99 for the 2-pack.
Do I need a Cerbo GX?
No. The free Ruuvi Station app shows the readings and can alert you. Add a Cerbo later and nothing resets.
Can it go in the freezer?
Yes — it's rated to −4 °F. Fridges are metal, so check the reading comes through before you close the door on it.
More than two tags, a Mopeka kit too, or shipping outside the US?
Call or text 520-910-1237 and we'll put a combined order together.
What if I get stuck during setup?
Call or text 520-910-1237. The troubleshooting table on page 3 of the guide covers the common problems.
Ruuvi and RuuviTag are trademarks of Ruuvi Innovations Ltd. Victron, Cerbo GX and VRM are trademarks of Victron Energy B.V. Tucson RV Solar is an independent reseller and installer.
