Any smartphone can use Lockitron through its intuitive two-button app. With Lockitron you can instantly share access with your family and friends. Lockitron lets you see if your door is locked when you’re gone. It will send a notification when your child unlocks the door using their phone or key. It’s incredibly easy to invite family, friends and guests to your Lockitron. Just enter their email address or phone number and Lockitron will take care of the rest.

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Lockitron can be pre-ordered there.