The Kevo lock has a unique inside-outside sensor to detect if the authorized user is inside or outside of the house. Performing the calibration process on your Kevo fob will enable this feature and fine tune Kevo's sensors, minimizing the potential for accidental unlocking from outside by an unauthorized user. Certain home configurations may impede the Kevo lock’s sensor more than others. For example: Your home office is located next to your entryway, and part of the office extends past the front door, jutting into the front yard. If your Kevo fob is being actively used in that office extension, the Kevo lock’s sensor could possibly detect the Kevo fob as being outside of your home while that Kevo fob is in active use.