Thermometers

Small thermometer. Chrome-plated brass body. Black numbers on a white dial.

The versatile RuuviTag protective case allows you to mount RuuviTag in many different locations using screws, cable ties or by hanging it. The soft silicone protective case protects RuuviTag from impacts and makes it easier to handle.

RuuviTag is a compact and versatile wireless sensor that is ideal for monitoring the environment on your boat. Its four built-in sensors measure temperature, humidity, air pressure and movement, giving you complete control over the conditions on your vessel. The sensor sends the data directly to your mobile phone via Bluetooth, and the user-friendly Ruuvi Station app allows you to monitor the measurement values ??in real time, analyze historical graphs and set custom alarms.

RuuviTag is particularly useful in marine environments where accurate monitoring of climate conditions is crucial for comfort, safety and equipment protection. It helps detect critical changes, such as moisture buildup or temperature fluctuations, that can affect sensitive systems on board.

Compatibility with Victron Energy
RuuviTag is fully compatible with Victron Energy systems, making it easy to integrate the sensor into your existing energy management and enabling even better control over your boat's climate.

4 built-in sensors
Temperature measurement: Accurate information on ambient temperature for optimal comfort. (0C, 0F, K; accuracy ±0.2°C between 5-60°C)

Humidity measurement: Monitors humidity and prevents mold and moisture damage. (RH-%, g/m³, dew point; accuracy ±3 RH-% between 20-80%)

Barometric pressure measurement: Helps predict weather changes and understand local weather conditions. (Pa, hPa, mmHg, inHg; accuracy ±1 hPa)

Motion Detection: Records movements and vibrations, making it useful for security and surveillance.

RuuviTag is a wireless sensor that sends measurement data directly to your phone via Bluetooth, with a range of 5–100 meters depending on the environment. The weatherproof and splash-proof housing makes it ideal for both indoor and outdoor use, even in demanding conditions. Its wide operating temperature range of -20°C to +70°C ensures suitability for most environments, and the long-lasting battery lasts 12–24 months. The replaceable CR2477 battery (included in the package) makes it easy to use.

RuuviTag is designed to be compatible with multiple systems, making it a flexible and versatile solution for different uses. It easily integrates with popular platforms such as Victron Energy, Home Assistant and Homey, enabling accurate measurements combined with powerful energy usage, automation and monitoring features.

RuuviTag application features:
Free and easy: User-friendly app that can be used without logging in.
Platforms: Available for both Android and iOS.
Alerts: Customizable Bluetooth alerts and personalized notifications.
Real-time tracking: Track data in real time.
Historical data: Detailed historical charts for up to 10 days, even offline.
Historical Data Export: Export up to 10 days of data for analysis.
Overview: A clear view of all sensors at the same time.
Personalization: Customize sensors with your own backgrounds and names.

Specifications:
Dimensions: Diameter 52 mm, height 12.55 mm.
Weight: 30 grams.
Operating temperature (with standard battery): -20°C to +70°C.
Maximum operating temperature: -40°C to +85°C.
Water resistance: IP67 certified, splash-proof.
Battery: Replaceable CR2477 battery (included), supports CR2477T battery in a wider temperature range.
Battery life: 12-24 months.
Bluetooth range: 5-20 m indoors, 20-100 m outdoors.
Integrations: Victron Energy, Home Assistant, Homey.
Remote monitoring: via Ruuvi Gateway and Ruuvi Cloud (available for subscription).

RuuviTag Pro is a rugged, IP-rated wireless sensor that measures temperature, humidity, air pressure and motion. RuuviTag Pro is based on the successful concept of RuuviTag and adds several excellent features. RuuviTag Pro is the most durable open source sensor on the market, and is perfectly suited for industrial needs as well as more demanding conditions in home use.

RuuviTag Pro is a Bluetooth sensor that measures environmental conditions and sends the information directly to your phone. With the Ruuvi Station mobile app, you can read real-time measurement data and explore history graphs. In the app, you can set alarm limits and receive a notification on your phone when conditions at the measurement site change. For example, if your freezer is defrosting, the temperature in your bedroom is too high, or the basement is too humid. There are dozens, if not hundreds, of uses for sensors.

ScrewTag Pro or ScrewTag?
RuuviTag Pro is a more durable version of RuuviTag. Both have the same operating principle and circuit board design. RuuviTag Pro has a more accurate temperature sensor, a more durable housing, improved mounting options, and a battery that allows for a wider operating temperature range. If you are not sure whether the basic RuuviTag meets your needs, especially if you plan to use the sensors in extreme conditions or industrial environments, we recommend choosing RuuviTag Pro. You can read more about the technical features below.

Operating conditions
Operating temperature (with included battery): -40 °C to +85 °C (-40 °F to 185 °F). Housing (4in1 and 3in1) water resistance: IP67, splash water resistant, non-condensing.
Watertightness of the enclosure (2in1): IP68 IP69K, hot pressurized water jet.
Battery: Replaceable CR2477T (included).
Battery life: approx. 12-24 months.
Certifications: CE, FCC, ISED, TELEC, IFETEL, NOM, RTCA DO-160 category H, RoHS, IC, HVIN, IMDA, OFCA, ICASA, POTRAZ.
Bluetooth range: 5-20 meters (indoors), 20-100 meters (outdoors). The range is affected by the sensitivity of the receiving mobile device's antenna, obstacles and wall materials. To improve reception, you can use a Ruuvi Gateway router.

Application features
Free and easy to use: User-friendly, free app, no login required.
Platforms: Android and iOS.
Alarms: Customizable (alarm limits and messages) Push alerts via Bluetooth. Accurate measurement results: Track real-time measurement results. History data: Accurate historical graph of measurement data for 10 days (offline). History download: Export feature for 10 days of history. Overview: See all your sensors in one view. Personalize your sensor: Change the background image and name the sensor.
Languages: Finnish, Swedish, English, French and German.

ScrewTag Pro 4-in-1
Temperature: °C, °F, K; typical accuracy ±0.1 °C @ 5-60 °C (±0.36 °F @ 41-140 °F).
Humidity: RH-%, g/m3, dew point; typical accuracy ±2 RH-% @ 20…80 %. Humidity range: 0-95 %.
Air pressure: Pa, hPa, mmHg, inHg; typical accuracy ±1 hPa. Range: 500-1155 hPa.
Motion: Motion counter. The counter increments when the acceleration exceeds a threshold on any axis.

Compatibility
Integrations: Victron Energy, Home Assistant, Homey et al.
Remote monitoring: When you are out of Bluetooth range, online monitoring is possible using the Ruuvi Gateway and Ruuvi Cloud Service (both sold separately).

Temperature gauges, 450-23 ohm. . Standard red and yellow lighting. 24 V installation ready with front resistor. Operating voltage 12/24 V. White base, stainless steel frame.