Klevio controls one lock per door.
If your apartment door has more than one lock, we recommend upgrading your primary lock to a high security unit, so that you don’t need to use a separate deadbolt. These more secure units feature auto-deadlocking which means that no one would be able to manipulate them by, for example, sliding in a credit card.
We also recommend that you chose a lock with a secure cylinder, such as the Yale X5, which is designed to be bump-resistant. We can recommend other locks as well.