The Pro 3-in-1 offers breathable sensing for temperature, humidity, and motion tracking. Its IP67 housing breathes for accurate humidity readings while keeping water out, making it a solid choice for protected outdoor spots, engine rooms, and damp lockers. It broadcasts over Bluetooth with no pairing, so a Victron Cerbo GX or other GX device reads its temperature and humidity directly, and it also works with the free Ruuvi Station app, the Ruuvi Gateway, and Home Assistant. Key Features Monitors temperature, humidity, and motion tracking Breathable IP67 housing for reliable airflow without water intrusion 1–2 year battery life Fully wireless and compatible with Victron & Ruuvi platforms What's Included RuuviTag Pro 3-in-1 (Breathable) Installed CR2477T battery Mounting screws Setup guide Ruuvi Sensor Comparison Table Feature 2-in-1 Pro (Sealed) 3-in-1 Pro (Breathable) 4-in-1 Pro (Breathable) 4-in-1 Standard Temperature ✅ ✅ ✅ ✅ Motion ✅ ✅ ✅ ✅ Humidity ❌ ✅ ✅ ✅ Air Pressure ❌ ❌ ✅ ✅ Enclosure IP68/IP69K (fully sealed) IP67 (breathable) IP67 (breathable) Open frame Battery Life ~1–2 years ~1–2 years ~1–2 years ~1–2 years Victron GX Compatible ✅ ✅ ✅ ✅ Warranty Backed by Ruuvi's 12-month limited warranty from the date of shipment, covering defects in design, materials, or workmanship. Batteries, normal wear, water/humidity damage, and misuse are excluded, and sensor-accuracy tolerances are not warranted. Blue Marine is an authorized Ruuvi reseller — ships brand-new with Ruuvi's 12-month limited warranty, free shipping, and local pickup available. How to Integrate RuuviTag Sensors into a Victron System