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PERTAK is a credit card size active card with ultra low power BLE technology. It has been developed for the purpose of people and asset tracking applications. 

Thanks to the built-in NFC support, it can be used in access-control systems, turnstiles, doors. PERTAK provides up to 3 years of battery life for 0dBm TX power and 1 second of interval.


  • Size:  86,5 x 54 x 4,3
  • Battery Life: 3 years + 
  • Max Range: 80m
  • Protocols: iBeacon , Beacon, UID
  • Attachment: Wearable or double sided sticker
  • Motion Sensor: Yes
  • Button: Yes (configurable by app)
  • Led: Red (configurable by app)
  • Protection: IP67
  • NFC  support: 13.56MHz ISO15693, ISO18000-3 Mode1
  • Configuration via Mobile app and NFC

Product Brochure


28 April 2023



About Us

Since 2010,  we, as Letta Group, are providing innovative products and solutions, design, prototyping, and manufacturing services on electronics, embedded systems and Internet-of-Things.

We are offering products and solutions in the fields of ATM technologies, smart electronic locks, IoT, Industry 4.0 applications and network technologies.  We are also providing product development,design, prototyping and manufacturing services.