Rental properties change hands often, and metal keys are easy to copy and hard to track. Smart locks solve that: codes are created for each guest and expire on their own. These are the features that matter.
Temporary and time-limited codes
The key feature for rentals is a code that works only between check-in and check-out. Through the app, owners create temporary passwords and send them to guests, cleaners or tradespeople. The D3 smart deadbolt supports temporary passwords and remote authorisation, and the B36 page describes access control with time limits and time segments for nannies, cleaners and guests.
Platform choice
TTLock is popular with property managers because its app is built around locks, users and passwords. TTLock versions are available on selected models including the B36, A20S and AC26S. Tuya suits owners who also use other smart devices. See our platform comparison.
Remote codes need a connection
To send a code while you are away, the lock needs Wi-Fi or a gateway. A Bluetooth-only lock can generate offline codes in some systems, but check this with the platform before you promise it to customers. Read our guide to Wi-Fi vs Bluetooth locks.
Auto-lock and anti-lock
Guests forget to lock doors. Auto-lock closes the bolt after a delay set in the app, and an inside button blocks entry from outside. The D3 detail page lists both.
User log
A log shows when each code or fingerprint was used. Combine it with notifications on Wi-Fi models for an audit trail.
Batteries between guests
The D3 lists up to 6000 unlocks per set of batteries. Add a battery check to every turnover, and keep spare batteries on site.
Which model for which unit?
| Unit | Suggested lock |
|---|---|
| Apartment with 35-50 mm door | D3 smart deadbolt |
| Interior wooden door | B6 / B36 wooden-door lock |
| Entrance with camera needs | Dual-screen video lock |
See the smart deadbolt buyer guide for door thickness checks.
Frequently asked questions
Can guests receive temporary codes?
Yes, temporary passwords are created through the app and can be time-limited.
Which platform is best for rentals?
TTLock is popular for rentals, and Tuya suits owners with other smart devices. Both are available on selected models.
Can the lock close itself?
The D3 lists automatic locking with a delay set in the app.
