Here’s how they work:
Once installed, from the inside you unlock the door by pushing in the knob on the inside handle and rotating it. This makes it pretty good as a child-proof lock for little kids and probably pretty hard for a burglar to unlock from outside your house.
From the outside, you unlock by either using the “virtual key” on your phone which you pair with the lock when first setting it up (to be honest I’ve found this is rather rubbish and I have only used it once). You present your phone to the lock, wait until a notification on your phone says “Your virtual key is ready to use” then physically rotate your phone. At which point the door light turns green, the motor whurrs and the lock unlocks.
You also get an NFC card and fob in the package, which are much more useful, I’ve bought a bunch of these to stick on the car keyrings and a few sticky NFC mini cards to put on our family phones/wallets etc.
These work by first pressing your finger on the wake up button on the lock, then touching the card or fob on the sensor. The light turns green and a little tune plays to let you know it’s unlocked. You then have 30 seconds to open to door or it re-locks itself.
I also have the z-wave module installed, so it’s integrated with ST, I can manually (or create a rule in WebCoRE to automatically) unlock the door from anywhere my phone has a 3G or Wifi signal by pressing the unlock buttons.
To lock the door, you simply pull the handle up.
The one weakness is that you cannot remotely lock the door, so for instance if you unlock it, go out and have forgotten to pull the handle up, the lock will be unlocked and cannot be changed.
I’ve also got ST set up so I get a warning if any door is open (using a HIve door sensor) or unlocked when everyone leaves the house (and when Good Night is run), so if we do forget, we can go back and sort it out.
Let me know if you have any more questions?