The Smart Knob promises a smarter, more secure deadbolt lock that lets us issue time-limited unlock codes or give trusted visitors a way in.

ENGADGET: March 16, 2013 4:15 PM EDT

This is beneficial for both consumers and commercial users who want to extend the value of their TecTile tags while retaining the secure option to lock a TecTile.

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The fix works, it is simple, and in our view makes the lock mechanically secure.

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