Tag Leonardo Asset


  • Decawave UWB Radio, True Location

  • Bluetooth Low Energy, BLE

  • Near Field Communication, NFC 

  • Configurable via web browser and RTLS Studio

  • Powered from 1000 mAh CR2477 battery (it is not included)

👉🏻 Please read assembly guide before use:

Tag Leonardo Asset-Assembly Guide.pdf

Tag Leonardo is an active mobile locator providing superior accuracy in real-time. Its position could be reported from milliseconds to minutes covering broad spectrum of applications from industrial projects to livestock. Battery lifetime goes up to years.

Feature Set



🎯 Accurate positioning based on integrated UWB radio. Tag emits UWB blinks and RTLS provides precise True Location via API.


🔋 Motion detection unit enables to save energy. The tag may transmit only during the movement.


📥 Bluetooth interface is used for wireless firmware update.


🔧 Tag Leonardo Asset is configured wirelessly through RTLS Studio or via Android device through NFC interface. 

NFC: Provides zero-spend energy reconfiguration. Tag Leonardo Asset might be reconfigured even without battery.

Switch on the Tag

Tag is initialized after it is turned on by holding the button for two seconds.  For more info about the button functionality please continue here

After the initialization phase, the tag sends location blink message periodically with given refresh interval. For time between position updates, the Tag goes into sleep modes. There are several sleep modes available suitable for different use-cases, please read more information here.   

The blink message is received by set of Anchors and it is forwarded to RTLS Studio via Ethernet of WiFi backhaul, where position is calculated. The blink message can be optionally equipped with sensor data. All the data is further disseminated trough the API.  First steps with Sewio Real Time Location System are described here.

Please note that LED and button is not accessible once the enclosure is closed.

Tag Battery Lifetime 

To read more about Tag's battery see section Tag Battery.

Also, see section about Charging and Storage Tag recommendation.

Number of Tags within RTLS System

Please read following section.

RF Profile

Please read following section.

Technical Parameters


50 x 85 x 27


70 g

Power Supply

Coin Battery CR2477, 1000 mAh

Operating Conditions

-20  ~  60 °C

20 – 85% humidity without condensation

Warm-up Time


Absolute Maximum Refresh Intrval50ms / 20Hz



Warehouse Manufacturing


Sports Tracking


UWB, Channel 5

6500 MHz / -41.3dBm

Bluetooth Low Energy  

2400 MHz




Part Number

SWT04-01-00Tag Leonardo Asset
SWT04-00-00Tag Leonardo Asset OEM

OEM Part numbers does not include enclosures and are delivered in ESD bag.

Please read Tag Leonardo OEM Terms of Use.

⚠️ Safety and Proper Handling 

  • Do not use deformed or damaged product or battery.
  • Do not modify the product.
  • Protect the product from excessive moisture.
  • Do not use the product if liquid has entered.
  • Protect the product from excessive heat.
  • Do not expose the product to excessive pressure.