What do the lights on the Numera Libris 2 mean?

The LED around the call button in the center of the device represents the battery level.

  • Green is good
  • Yellow means you should consider charging soon
  • Red means the battery is low and you should charge the device.

The LED at the top center of the device represents Cell Signal strength.

  • Green = strong connection,
  • Yellow = moderate signal, 
  • Red = a poor signal.
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