Lone worker alarm SRT306i

SRT306i is a lone worker alarm with GSM/GPRS communication and both outdoor and indoor positioning capabilities.

  • Speaker and microphone
  • Vibration and motion detection
  • Quadband GSM/GPRS
  • 99 channel GNSS receiver
  • Supports GeoFencing
  • Intelligent power saving mode
  • Low battery alarm
  • Status LEDs
  • USB charging
  • Water and dust proof (IP54)
  • Small and handy size: 90x46x21,5 mm
  • Weight: 98g

SRT306i supports indoor positioning based on communication with RF tags (SRT334i/SRT334i2). An area with no GNSS coverage can be equipped with RF tags and each tag is programmed with specific position data. When SRT306i enters an area covered by a specific tag it receives the preprogrammed information. The range of the radio signal from each RF tag can be adjusted to achieve the desired coverage.

SRT306i has the ability to assess the optimal positioning method in any given situation. When available it will use GNSS but when devoid of such possibility it will instead attempt using RF positioning. If any available RF tags are found, the SRT306i will switch off GNSS positioning. The same will work in reverse, so the SRT306i will enable GNSS when losing RF connectivity and shut RF positioning off as soon as a GNSS position is received. This mode of operation maximizes battery lifetime.

Further configuration of positioning methods is also possible. For example, you can have the SRT306i use RF positioning during office hours. Or set it to switch to RF positioning upon arriving at a certain geographical location. Provided the SRT306i is outside and receives a GNSS position it can decide when it enters the designated area and can then switch to RF positioning.