Tag Leonardo iMU / Personal


  • Decawave UWB Radio, True Location

  • Bluetooth Low Energy, BLE

  • Near Field Communication, NFC 

  • Wireless Charge

  • Configurable via web browser and RTLS Studio

  • 300 mAh Li-pol battery

          Available only on Tag Leonardo iMU
  • 9-axis IMU (gyroscope / magnetometer / accelerometer)  

  • Barometer 

Tag Leonardo iMU                                                     

Tag Leonardo Personal                                             


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.


Tag is configured wirelessly through RTLS Studio or via Android device through NFC interface. Tag is powered from Li-ion battery which could be recharged via Qi compliant charger, please read more details here.

The only difference between Tag Leonardo iMU and Tag Leonardo Personal are additional sensors: 9-axis inertial unit and barometer equipped with Tag Leonardo iMU.       

Feature Set


Decawave UWB Radio 


Tag emits blinks and RTLS provides precise True Location via API.
Bluetooth Low Energy


BLE can be used for wireless firmware update.


Provides zero-spend energy Tag reconfiguration. Tag Leonardo iMU OEM might be reconfigured even without battery.
9-axis IMU




Provides raw data from inertial unit for custom processing like hit/fall detection, jumps etc. or sensor fusion and 3D orientation.

available only for Tag Leonardo IMU



Provides raw atmospheric pressure data or could be used for direct Z-axis estimation.

available only for Tag Leonardo IMU

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

If the tag's battery is depleted, it is powered ON automatically during the charging once the battery voltage reaches 3.3 V.

After the initialization phase, the tag sends location blink message periodically with given refresh rate. 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.

Tag Battery Lifetime 

Please read following section.

Number of Tags within RTLS

Please read following section.

RF Profile

Please read following section.

Part Number

SWT06-01-00Tag Leonardo iMU
SWT06-00-00Tag Leonardo iMU OEM
SWT05-01-00Tag Leonardo Personal
SWT05-00-00Tag Leonardo Personal OEM

OEM Partnumbers does not includes 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 charge or use the product if liquid has entered.
  • Protect the product from excessive heat.
  • Do not expose the product to excessive pressure.
  • Do not over-discharge the Tag's battery, below 2.75V. Over-discharging can damage the performance of the Tag's battery. It should be noted that the battery would be at an over-discharged state by its self-discharge characteristics in case the cell is not used for long time. In order to prevent over-discharging, the battery shall be charged periodically to maintain between 3.7V and 4.1V.